Reduced feedrate on 2nd reference Pass.
The option to reduce the homing feed-rate for 2nd reference Can be set by 1-normal feed rate or 2-To halve the feed rate. What happens if it is made 3 or 4? Will it ignore and home with normal feed?
What makes no sense in your valus is if z max feedrate is 12 why do you print with 200mm/s and home with 50mm/s? Home will be reduced to 12 as that is max value. and even with factor 4 reduced homing is 50/4 = 12.5 and still higher then maximum speed so also reduced to 12mm/s.