I've done 944NA brakes all around with the 23/19 MC on various platforms and really haven't had any complains with pedal effort, even in a 'heavy' car like a late model SB convertible. The 944MC in a bus is a little softer because of the slightly higher pedal ratio in the T2's.
I find alot of newer modern cars are overboosted on the pedal assist. I personally have a beef with the newer VW's (mk4+). The brakes are WAY too sensitive...you barely touch the pedal and everything grabs. I find it disconcerting to drive, so I stick with my daily driver Hondas. If you get out of your MK4 Golf and get into the old dub, by contrast the pedal feels like it requires a olympic powerlifters' quads....

. Besides, a booster will just make the car heavier...;P
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