diff --git a/config/artsey.dtsi b/config/artsey.dtsi
index 4096011..52366f7 100644
--- a/config/artsey.dtsi
+++ b/config/artsey.dtsi
@@ -113,21 +113,28 @@
 /*****************************************
  * Define how long it takes for the combos/holds to 'time out'
  * See documentation on "combos" for more detail
- * Advanced users / fast typers on ARTSEY may want to use the following values
- *     Hold timeout: 200
- *     Combo timeout: 180
+
  *****************************************/
-#if !defined TIMEOUT_COMBO
-#define TIMEOUT_COMBO 250
+#if !defined TIMEOUT_COMBO_2
+#define TIMEOUT_COMBO_2 125
+#endif
+#if !defined TIMEOUT_COMBO_3
+#define TIMEOUT_COMBO_3 150
+#endif
+#if !defined TIMEOUT_COMBO_4
+#define TIMEOUT_COMBO_4 175
 #endif
 #if !defined TIMEOUT_LAYER_HOLD
-#define TIMEOUT_LAYER_HOLD 500
+#define TIMEOUT_LAYER_HOLD 200
+#endif
+#if !defined TIMEOUT_STICKY_LEADER_KEY
+#define TIMEOUT_STICKY_LEADER_KEY 5000
 #endif
 &sk {
-	release-after-ms = <1000>;
+	release-after-ms = <TIMEOUT_STICKY_LEADER_KEY>;
 };
 &sl { 
-	release-after-ms = <2000>;
+	release-after-ms = <TIMEOUT_STICKY_LEADER_KEY>;
 };
 
 /*****************************************
@@ -194,6 +201,7 @@
  * Layer IDs used by the ARTSEY keymap
  * Do NOT change these and do NOT change the order of the layers as shown below
  *****************************************/
+#define LAYER_ID_GLOBAL -1
 #define LAYER_ID_BASE 0
 #define LAYER_ID_NUMBERS 1
 #define LAYER_ID_SYMBOLS 2
@@ -211,52 +219,67 @@
 / {
 	combos {
 		compatible = "zmk,combos";
-		combo_b { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_E KEY_O>; bindings = <&kp B>; };
-		combo_m { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_Y KEY_I KEY_O>; bindings = <&kp M>; };
-		combo_c { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_E KEY_Y>; bindings = <&kp C>; };
-		combo_n { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_I KEY_O>; bindings = <&kp ARTSEY_COMBO_N>; };
-		combo_d { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_A KEY_R KEY_T>; bindings = <&kp D>; };
-		combo_p { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_E KEY_I KEY_O>; bindings = <&kp P>; };
-		combo_f { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_A KEY_R>; bindings = <&kp F>; };
-		combo_q { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_A KEY_T KEY_S>; bindings = <&kp Q>; };
-		combo_g { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_R KEY_T>; bindings = <&kp G>; };
-		combo_u { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_Y KEY_I>; bindings = <&kp U>; };
-		combo_h { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_E KEY_I>; bindings = <&kp H>; };
-		combo_v { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_R KEY_S>; bindings = <&kp V>; };
-		combo_j { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_T KEY_S>; bindings = <&kp J>; };
-		combo_w { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_A KEY_S>; bindings = <&kp W>; };
-		combo_k { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_Y KEY_O>; bindings = <&kp K>; };
-		combo_x { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_R KEY_T KEY_S>; bindings = <&kp X>; };
-		combo_l { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_E KEY_Y KEY_I>; bindings = <&kp L>; };
-		combo_z { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_A KEY_R KEY_T KEY_S>; bindings = <&kp Z>; };
-		combo_enter { timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_A KEY_E>; bindings = <&kp ENTER>; };
-		combo_esc { timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_A KEY_R KEY_O>; bindings = <&kp ESC>; };
-		combo_single_quote { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_A KEY_Y KEY_I>; bindings = <&kp SQT>; };
-		combo_tab { timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_A KEY_R KEY_T KEY_O>; bindings = <&kp TAB>; };
-		combo_comma { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_A KEY_Y>; bindings = <&kp COMMA>; };
-		combo_control { timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_E KEY_S>; bindings = <&sk LCTRL>; };
-		combo_period { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_A KEY_I>; bindings = <&kp PERIOD>; };
-		combo_gui { timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_Y KEY_S>; bindings = <&sk LGUI>; };
-		combo_slash { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_A KEY_O>; bindings = <&kp SLASH>; };
-		combo_alt { timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_I KEY_S>; bindings = <&sk LALT>; };
-		combo_exclamation { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_T KEY_I>; bindings = <&kp EXCL>; };
-		combo_backspace { timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_E KEY_R>; bindings = <&kp BACKSPACE>; };
-		combo_delete { timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_I KEY_R>; bindings = <&kp DELETE>; };
-		combo_shift { timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_E KEY_R KEY_T KEY_S>; bindings = <&sk LSHFT>; };
-		combo_space { timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_E KEY_Y KEY_I KEY_O>; bindings = <&kp SPACE>; };
-		combo_shift_lock { timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_R KEY_Y>; bindings = <&kt LSHFT>; };
-		combo_caps_lock { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_O KEY_I KEY_Y KEY_A>; bindings = <&kp CAPS>; };
-		combo_seven { layers = <LAYER_ID_NUMBERS>; timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_A KEY_R>; bindings = <&kp N7>; };
-		combo_eight { layers = <LAYER_ID_NUMBERS>; timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_R KEY_T>; bindings = <&kp N8>; };
-		combo_nine { layers = <LAYER_ID_NUMBERS>; timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_E KEY_Y>; bindings = <&kp N9>; };
-		combo_zero { layers = <LAYER_ID_NUMBERS>; timeout-ms = <TIMEOUT_COMBO>; key-positions = <KEY_Y KEY_I>; bindings = <&kp N0>; };
-		combo_layer_bt_select { key-positions = <KEY_A KEY_E KEY_S KEY_O>; bindings = <&tog LAYER_ID_BT_SEL>; };
-		combo_bt_clr { key-positions = <KEY_R KEY_Y KEY_T KEY_I>; bindings = <&bt BT_CLR>; };
-		combo_layer_navigation { key-positions = <KEY_R KEY_E KEY_I>; bindings = <&tog LAYER_ID_NAVIGATION>; };
+		/*****************************************
+		 * 2 key combos
+		 *****************************************/
 		// Function layer doesn't apply to non-big artsey presently
 		#if defined ARTSEY_BIG
 		combo_layer_functions { key-positions = <KEY_F_TOP KEY_F_BOTTOM>; bindings = <&sl LAYER_ID_BIG_FUNCTION>; };
 		#endif
+		combo_enter      { timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_A KEY_E>; bindings = <&kp ENTER>; };
+		combo_control    { timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_E KEY_S>; bindings = <&sk LCTRL>; };
+		combo_gui        { timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_Y KEY_S>; bindings = <&sk LGUI>; };
+		combo_alt        { timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_I KEY_S>; bindings = <&sk LALT>; };
+		combo_backspace  { timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_E KEY_R>; bindings = <&kp BACKSPACE>; };
+		combo_delete     { timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_I KEY_R>; bindings = <&kp DELETE>; };
+		combo_shift_lock { timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_R KEY_Y>; bindings = <&kt LSHFT>; };
+
+		combo_b           { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_E KEY_O>; bindings = <&kp B>; };
+		combo_c           { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_E KEY_Y>; bindings = <&kp C>; };
+		combo_n           { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_I KEY_O>; bindings = <&kp ARTSEY_COMBO_N>; };
+		combo_f           { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_A KEY_R>; bindings = <&kp F>; };
+		combo_g           { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_R KEY_T>; bindings = <&kp G>; };
+		combo_u           { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_Y KEY_I>; bindings = <&kp U>; };
+		combo_h           { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_E KEY_I>; bindings = <&kp H>; };
+		combo_v           { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_R KEY_S>; bindings = <&kp V>; };
+		combo_j           { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_T KEY_S>; bindings = <&kp J>; };
+		combo_w           { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_A KEY_S>; bindings = <&kp W>; };
+		combo_k           { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_Y KEY_O>; bindings = <&kp K>; };
+		combo_comma       { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_A KEY_Y>; bindings = <&kp COMMA>; };
+		combo_period      { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_A KEY_I>; bindings = <&kp PERIOD>; };
+		combo_slash       { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_A KEY_O>; bindings = <&kp SLASH>; };
+		combo_exclamation { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_T KEY_I>; bindings = <&kp EXCL>; };
+		
+		combo_seven { layers = <LAYER_ID_NUMBERS>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_A KEY_R>; bindings = <&kp N7>; };
+		combo_eight { layers = <LAYER_ID_NUMBERS>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_R KEY_T>; bindings = <&kp N8>; };
+		combo_nine  { layers = <LAYER_ID_NUMBERS>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_E KEY_Y>; bindings = <&kp N9>; };
+		combo_zero  { layers = <LAYER_ID_NUMBERS>; timeout-ms = <TIMEOUT_COMBO_2>; key-positions = <KEY_Y KEY_I>; bindings = <&kp N0>; };
+
+		/*****************************************
+		 * 3 key combos
+		 *****************************************/
+		combo_esc              { timeout-ms = <TIMEOUT_COMBO_3>; key-positions = <KEY_A KEY_R KEY_O>; bindings = <&kp ESC>; };
+		combo_layer_navigation { timeout-ms = <TIMEOUT_COMBO_3>; key-positions = <KEY_R KEY_E KEY_I>; bindings = <&tog LAYER_ID_NAVIGATION>; };
+
+		combo_m            { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_3>; key-positions = <KEY_Y KEY_I KEY_O>; bindings = <&kp M>; };
+		combo_d            { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_3>; key-positions = <KEY_A KEY_R KEY_T>; bindings = <&kp D>; };
+		combo_p            { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_3>; key-positions = <KEY_E KEY_I KEY_O>; bindings = <&kp P>; };
+		combo_q            { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_3>; key-positions = <KEY_A KEY_T KEY_S>; bindings = <&kp Q>; };
+		combo_x            { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_3>; key-positions = <KEY_R KEY_T KEY_S>; bindings = <&kp X>; };
+		combo_l            { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_3>; key-positions = <KEY_E KEY_Y KEY_I>; bindings = <&kp L>; };
+		combo_single_quote { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_3>; key-positions = <KEY_A KEY_Y KEY_I>; bindings = <&kp SQT>; };
+		
+		/*****************************************
+		 * 4 key combos
+		 *****************************************/
+		combo_tab             { timeout-ms = <TIMEOUT_COMBO_4>; key-positions = <KEY_A KEY_R KEY_T KEY_O>; bindings = <&kp TAB>; };
+		combo_space           { timeout-ms = <TIMEOUT_COMBO_4>; key-positions = <KEY_E KEY_Y KEY_I KEY_O>; bindings = <&kp SPACE>; };
+		combo_shift           { timeout-ms = <TIMEOUT_COMBO_4>; key-positions = <KEY_E KEY_R KEY_T KEY_S>; bindings = <&sk LSHFT>; };
+		combo_layer_bt_select { timeout-ms = <TIMEOUT_COMBO_4>; key-positions = <KEY_A KEY_E KEY_S KEY_O>; bindings = <&tog LAYER_ID_BT_SEL>; };
+		combo_bt_clr          { timeout-ms = <TIMEOUT_COMBO_4>; key-positions = <KEY_R KEY_Y KEY_T KEY_I>; bindings = <&bt BT_CLR>; };
+
+		combo_z         { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_4>; key-positions = <KEY_A KEY_R KEY_T KEY_S>; bindings = <&kp Z>; };
+		combo_caps_lock { layers = <LAYER_ID_BASE>; timeout-ms = <TIMEOUT_COMBO_4>; key-positions = <KEY_O KEY_I KEY_Y KEY_A>; bindings = <&kp CAPS>; };
 	};
 };