I don’t think caliper travel is an issue, it’s not like they have a return spring. I believe the pedal travel difference is a result of the fluid volume difference between the two systems.
It definitely makes some difference but I have had mine looked at by another SRT owner and he feels mine is too low.
If it was due to the cylinders requiring more volume then the MC should have been larger.
I could calculate the extra cylinder surface area and compare them, using the published cylinder diameters in the specification sheet, but the cylinders only move a few thou so the pedal throw should be not too much more.
I wish that I had measured the free play between the MC push rod and the pedal push rod when I had the MC off for replacement. Hindsight is a great thing.