Takes little effort, stops on a dime. I prefer less pedal travel with the manual brakes.
Never felt the need to use 2 feet to stop, it's just not difficult.
I may have had the smaller bore before I recently replaced the master, not sure.
The only difference I noticed with the new master was less pedal travel and the brakes came on sooner, which I like.
Could have been just because my old master slowly stopped working well and it made the new one seem way better.
Bottom line, the pedal is not difficult by any means and the car stops incredibly well.