@achrn I can see why this happens. Normally, the feed rate you specify in the G1 command refers to the combined movement of the XYZ (and any other linear) axes. But when homing all 3 towers simultaneously on a delta, we want the feed rate to refer to the individual speeds of each of the towers. So RRF multiples the feed rate you ask for by sqrt(3) so that when it does the calculations, you get the correct feed rate. A consequence of that is that the reported feed rate is incorrect.