diff --git a/README.md b/README.md
index 1d20d6c..298d71f 100644
--- a/README.md
+++ b/README.md
@@ -106,18 +106,18 @@ Combo: SPC+ALT = ENTER (if ALT held via T)
 [HUB] = hold opens HUB layer, release goes back
 ```
 
-### Layer 4: Reserved (ZMK Studio)
-
-### Layer 5: HUB
+### Layer 4: HUB
 ```
 BT_CLR BT0  BT1  BT2  BT3  BT4  | +      [     UP    ]     *    =
 USB/BT _    _    _    _    _    | -      LEFT  DOWN  RIGHT  /    \
-LSHFT  Z    X    C    V    _    | ->CARP ->QWRT ->STEN ->FPS ->L4 RSHFT
+LSHFT  Z    X    C    V    _    | ->CARP ->QWRT ->STEN ->FPS ->L5 RSHFT
           ESC  CTRL GUI         | SPC    ALT   _
 
 Combo: SPC+ALT = ENTER
 ```
 
+### Layer 5: Reserved (ZMK Studio)
+
 # Related Resources
 
 - [ZMK Firmware Documentation](https://zmk.dev/docs)
diff --git a/config/corne.keymap b/config/corne.keymap
index 2aef9b6..10861c0 100644
--- a/config/corne.keymap
+++ b/config/corne.keymap
@@ -37,7 +37,7 @@
         // J+K (QWRT) / A+E (CARP) = ENTER
         combo_enter { key-positions = <19 20>; bindings = <&kp RET>; layers = <0 1>; };
         // SPC+ALT = ENTER (all layers except steno)
-        combo_thumb_enter { key-positions = <39 40>; bindings = <&kp RET>; layers = <0 5 1 3>; };
+        combo_thumb_enter { key-positions = <39 40>; bindings = <&kp RET>; layers = <0 4 1 3>; };
     };
 
     keymap {
@@ -46,27 +46,27 @@
         carpalx_layer {
             display-name = "CARP";
             bindings = <
-&kp GRAVE  &kp Q   &kp G   &kp M     &kp L     &kp W        &kp Y     &kp F    &kp U      &kp B    &kp SEMI  &to 5
+&kp GRAVE  &kp Q   &kp G   &kp M     &kp L     &kp W        &kp Y     &kp F    &kp U      &kp B    &kp SEMI  &to 4
 &kp TAB    &kp D   &kp S   &kp T     &kp N     &kp R        &kp I     &kp A    &kp E      &kp O    &kp H     &kp SQT
 &kp LSHFT  &kp Z   &kp X   &kp C     &kp V     &kp J        &kp K     &kp P    &kp COMMA  &kp DOT  &kp FSLH  &kp RSHFT
-                            &kp ESC   &kp LCTRL &kp LGUI     &kp SPACE &kp RALT &mo 5
+                            &kp ESC   &kp LCTRL &kp LGUI     &kp SPACE &kp RALT &mo 4
             >;
         };
 
         qwerty_layer {
             display-name = "QWRT";
             bindings = <
-&kp GRAVE  &kp Q   &kp W   &kp E     &kp R     &kp T        &kp Y     &kp U    &kp I      &kp O    &kp P     &to 5
+&kp GRAVE  &kp Q   &kp W   &kp E     &kp R     &kp T        &kp Y     &kp U    &kp I      &kp O    &kp P     &to 4
 &kp TAB    &kp A   &kp S   &kp D     &kp F     &kp G        &kp H     &kp J    &kp K      &kp L    &kp SEMI  &kp SQT
 &kp LSHFT  &kp Z   &kp X   &kp C     &kp V     &kp B        &kp N     &kp M    &kp COMMA  &kp DOT  &kp FSLH  &kp RSHFT
-                            &kp ESC   &kp LCTRL &kp LGUI     &kp SPACE &kp RALT &mo 5
+                            &kp ESC   &kp LCTRL &kp LGUI     &kp SPACE &kp RALT &mo 4
             >;
         };
 
         steno_layer {
             display-name = "STEN";
             bindings = <
-&none      &kp N1  &kp N2  &kp N3  &kp N4  &kp N5       &kp N6  &kp N7  &kp N8  &kp N9    &kp N0    &to 5
+&none      &kp N1  &kp N2  &kp N3  &kp N4  &kp N5       &kp N6  &kp N7  &kp N8  &kp N9    &kp N0    &to 4
 &none      &kp Q   &kp W   &kp E   &kp R   &kp T        &kp Y   &kp U   &kp I   &kp O     &kp P     &kp LBKT
 &none      &kp A   &kp S   &kp D   &kp F   &kp G        &kp H   &kp J   &kp K   &kp L     &kp SEMI  &kp SQT
                             &none   &kp C   &kp V        &kp N   &kp M   &none
@@ -76,25 +76,25 @@
         fps_layer {
             display-name = "FPS";
             bindings = <
-&mt ESC N1 &kp N2    &kp Q   &kp W   &mt N3 E &mt N4 R    &kp N5  &kp N6  &kp N7  &kp N8  &kp N9    &to 5
+&mt ESC N1 &kp N2    &kp Q   &kp W   &mt N3 E &mt N4 R    &kp N5  &kp N6  &kp N7  &kp N8  &kp N9    &to 4
 &kp TAB    &kp LSHFT &kp A   &kp S   &kp D   &kp G        &none   &none   &none   &none   &none     &none
 &kp M      &kp Z     &kp X   &kp C   &kp V   &kp F        &none   &none   &none   &none   &none     &none
-                              &mt LALT T &kp LCTRL &kp SPACE  &none   &none   &mo 5
+                              &mt LALT T &kp LCTRL &kp SPACE  &none   &none   &mo 4
             >;
         };
 
-        extra_1 {
-            status = "reserved";
-        };
-
         hub_layer {
             display-name = "HUB";
             bindings = <
 &bt BT_CLR      &bt BT_SEL 0        &bt BT_SEL 1    &bt BT_SEL 2    &bt BT_SEL 3    &bt BT_SEL 4    &kp PLUS  &kp LBKT    &kp UP      &kp RBKT      &kp ASTRK     &kp EQUAL
 &out OUT_TOG    &none               &none           &none           &none           &none           &kp MINUS &kp LEFT    &kp DOWN    &kp RIGHT     &kp FSLH      &kp BSLH
-&kp LSHFT       &kp Z               &kp X           &kp C           &kp V           &none           &to 0     &to 1       &to 2       &to 3         &to 4         &kp RSHFT
+&kp LSHFT       &kp Z               &kp X           &kp C           &kp V           &none           &to 0     &to 1       &to 2       &to 3         &to 5         &kp RSHFT
                                                     &kp ESC         &kp LCTRL       &kp LGUI        &kp SPACE &kp RALT    &none
             >;
         };
+
+        extra_1 {
+            status = "reserved";
+        };
     };
 };