I've been tinkering with adrian's Marlin firmware while upgrading my SD2 to a RAMPS 1.4 setup. Everything is working alright except for homing. The XYZ carriages properly move to the endstops, but the rehoming action is much slower and makes my motors buzz/grind because they're not moving fast enough. Where (in adrian's FW) can I adjust the rehoming feedrate?

With Repetier Firmware, I noticed it includes the following:

#define ENDSTOP_X_RETEST_REDUCTION_FACTOR 1
#define ENDSTOP_Y_RETEST_REDUCTION_FACTOR 1
#define ENDSTOP_Z_RETEST_REDUCTION_FACTOR 1

This is exactly what I'm looking for, but in Marlin.

Given the fact I'm so close to getting everything running, I didn't want to dabble in the Repetier fw quite yet.