diff --git a/g2core/controller.cpp b/g2core/controller.cpp
index 1925fb2a..419c8a53 100644
--- a/g2core/controller.cpp
+++ b/g2core/controller.cpp
@@ -324,7 +324,9 @@ void _reset_comms_mode() {
     // reset the communications mode
     cs.comm_mode = COMM_MODE;
     js.json_mode = (COMM_MODE < AUTO_MODE) ? COMM_MODE : JSON_MODE;
+#if MARLIN_COMPAT_ENABLED == true
     mst.marlin_flavor = false;
+#endif
     sr.status_report_verbosity = STATUS_REPORT_VERBOSITY;
     qr.queue_report_verbosity = QUEUE_REPORT_VERBOSITY;
 }
diff --git a/g2core/settings/settings_default.h b/g2core/settings/settings_default.h
index dead597e..1316d84a 100644
--- a/g2core/settings/settings_default.h
+++ b/g2core/settings/settings_default.h
@@ -937,6 +937,9 @@
 #ifndef H1_DEFAULT_D
 #define H1_DEFAULT_D                400.0
 #endif
+#ifndef H1_DEFAULT_F
+#define H1_DEFAULT_F                0.0
+#endif
 
 #ifndef H2_DEFAULT_ENABLE
 #define H2_DEFAULT_ENABLE           false
@@ -950,6 +953,9 @@
 #ifndef H2_DEFAULT_D
 #define H2_DEFAULT_D                400.0
 #endif
+#ifndef H2_DEFAULT_F
+#define H2_DEFAULT_F                0.0
+#endif
 
 #ifndef H3_DEFAULT_ENABLE
 #define H3_DEFAULT_ENABLE           false
@@ -963,6 +969,9 @@
 #ifndef H3_DEFAULT_D
 #define H3_DEFAULT_D                400.0
 #endif
+#ifndef H3_DEFAULT_F
+#define H3_DEFAULT_F                0.0
+#endif
 
 // *** DEFAULT COORDINATE SYSTEM OFFSETS ***
 
diff --git a/g2core/temperature.cpp b/g2core/temperature.cpp
index 6402e0da..a218ebfa 100755
--- a/g2core/temperature.cpp
+++ b/g2core/temperature.cpp
@@ -52,14 +52,12 @@
 #define HAS_TEMPERATURE_SENSOR_3  false
 #endif
 #ifndef EXTRUDER_1_OUTPUT_PIN
-#warning using default extruder 1 output pin
 #define EXTRUDER_1_OUTPUT_PIN kOutput1_PinNumber
 #endif
 #ifndef EXTRUDER_1_FAN_PIN
 #define EXTRUDER_1_FAN_PIN    kOutput3_PinNumber
 #endif
 #ifndef EXTRUDER_2_OUTPUT_PIN
-#warning using default extruder 2 output pin
 #define EXTRUDER_2_OUTPUT_PIN kOutput2_PinNumber
 #endif
 #ifndef BED_OUTPUT_PIN