#define DEBUG_QUEUE_MOVE

#define ENDSTOPPULLUPS // Comment this out (using // at the start of the line) to disable the endstop pullup resistors

The original config has CARRIAGE_HORIZONTAL_OFFSET and END_EFFECTOR_HORIZONTAL_OFFSET which compute #define ROD_RADIUS (PRINTER_RADIUS-END_EFFECTOR_HORIZONTAL_OFFSET-CARRIAGE_HORIZONTAL_OFFSET)

That is so new it is not officially part of any config. That is why you have to add #define FAST_COREXYZ

#define DELTA_DIAGONAL_ROD 345 

you can detail how to disable the double steps, I have not found this parameter memory #define FAST_COREXYZ

Figured it out: The 're-homing' step, after the filament was loaded, was bugging me.  So I went back into the configuration tool:  In the features tab under the "Filament Change" section, I

#define SDSUPPORT 1

Max travel speed 2 (#define MAX_FEEDRATE_Z)Homing speed 2 (#define HOMING_FEEDRATE_Z)

#define FEATURE_SERVO 1

 #define  _SET_OUTPUT(IO)  do {DIO ##  IO ## _DDR |=  MASK(DIO ## IO ## _PIN); } while (0)

I did a complete download\install of the latest firmware 92.9, added this line to my configuration.h:#define FAST_COREXYZ

#define INIT_NOT_USED

#define CONFIGURATION_H

/*#define USER_KEY1_PIN UI_DISPLAY_D5_PIN // D5 to display (not used for graphics controller), change to other pin if you use character LCD !#define USER_KEY1_ACTION UI_ACTION_FAN_SUSPEND#de

#define EEPROM_MODE 0

#define MIXING_EXTRUDER 1

#define UI_KEYS_MACRO_BUTTON_LOW......// in ui.h

set #define min_software_endstop_z false

#define STEPPER_HIGH_DELAY 1  //or 2 if you operate from 12V supply 1 should work on 24V