diff --git a/src/main/target/OMNIBUS/target.h b/src/main/target/OMNIBUS/target.h
index 895e09337a..eb147051d7 100644
--- a/src/main/target/OMNIBUS/target.h
+++ b/src/main/target/OMNIBUS/target.h
@@ -20,6 +20,7 @@
 // Removed to make the firmware fit into flash (in descending order of priority):
 #undef USE_DSHOT_DMAR           // OMNIBUS (F3) does not benefit from burst Dshot
 #undef USE_GYRO_OVERFLOW_CHECK
+#undef USE_GYRO_BIQUAD_RC_FIR2
 
 #undef USE_SERIALRX_XBUS
 #undef USE_TELEMETRY_LTM
diff --git a/src/main/target/RCEXPLORERF3/target.h b/src/main/target/RCEXPLORERF3/target.h
index 81aba2f630..ec1a06c605 100644
--- a/src/main/target/RCEXPLORERF3/target.h
+++ b/src/main/target/RCEXPLORERF3/target.h
@@ -19,6 +19,12 @@
 
 #define TARGET_BOARD_IDENTIFIER "REF3"
 
+//Making it fit into flash:
+#undef USE_RTC_TIME
+#undef USE_COPY_PROFILE_CMS_MENU
+#undef USE_RX_MSP
+
+
 #define CONFIG_FASTLOOP_PREFERRED_ACC ACC_NONE
 
 #define LED0_PIN    PB4
diff --git a/src/main/target/SPRACINGF3EVO/target.h b/src/main/target/SPRACINGF3EVO/target.h
index 9d29312c0a..b07209e34d 100644
--- a/src/main/target/SPRACINGF3EVO/target.h
+++ b/src/main/target/SPRACINGF3EVO/target.h
@@ -25,6 +25,12 @@
 #define TARGET_BOARD_IDENTIFIER "SPEV"
 #endif
 
+//Making it fit into flash:
+#undef USE_RTC_TIME
+#undef USE_COPY_PROFILE_CMS_MENU
+#undef USE_RX_MSP
+
+
 #if !defined(AIORACERF3)
 #define USE_TARGET_CONFIG
 #endif
diff --git a/src/main/target/SPRACINGF3NEO/target.h b/src/main/target/SPRACINGF3NEO/target.h
index 4c0a29e16a..d44a505f5b 100644
--- a/src/main/target/SPRACINGF3NEO/target.h
+++ b/src/main/target/SPRACINGF3NEO/target.h
@@ -20,6 +20,12 @@
 #define TARGET_BOARD_IDENTIFIER "SP3N"
 #define USE_TARGET_CONFIG
 
+//Making it fit into flash:
+#undef USE_RTC_TIME
+#undef USE_COPY_PROFILE_CMS_MENU
+#undef USE_RX_MSP
+
+
 #undef USE_COPY_PROFILE_CMS_MENU
 
 #define CONFIG_FASTLOOP_PREFERRED_ACC ACC_DEFAULT
diff --git a/src/main/target/common_fc_pre.h b/src/main/target/common_fc_pre.h
index b35535bb5b..28967547b4 100644
--- a/src/main/target/common_fc_pre.h
+++ b/src/main/target/common_fc_pre.h
@@ -150,6 +150,7 @@
 #define USE_VTX_CONTROL
 #define USE_VTX_SMARTAUDIO
 #define USE_VTX_TRAMP
+#define USE_GYRO_BIQUAD_RC_FIR2
 
 #ifdef USE_SERIALRX_SPEKTRUM
 #define USE_SPEKTRUM_BIND
@@ -169,7 +170,6 @@
 #define USE_GPS
 #define USE_GPS_NMEA
 #define USE_GPS_UBLOX
-#define USE_GYRO_BIQUAD_RC_FIR2
 #define USE_NAV
 #define USE_OSD_ADJUSTMENTS
 #define USE_SENSOR_NAMES