If you've never had a pedal stick to the floor on a powershift and bang the bejesus out of your limiter chip... it's quite fun. NOT! I still have the OS on my Dart with the centerforce, but, I also don't run the car real hard anymore.
The diaphram PP arms don't have the energy, by design, that a B&B or Long style Pressure plate has in the 3 finger arms pushing back on the throwout. It can cause the pedal to stick on the floor when at high RPM.
