Diaphragm vs. Borg and Beck.............

My other car is a 427 Cobra replica with a 429 SCJ and Toploader 4 speed. Last summer I replaced the Borg and Beck clutch with a Centerforce diaphragm setup. As far as I can tell in street driving and occasionally running hard through the gears, they both perform very well but the Centerforce does require less pedal effort even with a hydraulic clutch slave cylinder.