Which clutch is best, Borg and Beck or diaphragm?

I have a Centerforce Dual Friction 10.5 inch diaphragm clutch in my 65 Barracuda. The pedal pressure is much easier on my left knee than the B&B. Instead of removing the over-center spring, I replaced it with a lighter one. Feels great now. It has also lasted longer than any B&B I've ever had.

BUT: I used to speed shift my trans all the time. Loved doing it. The Centerforce bites so hard, though, that I no longer speed shift, racing or not, as it feels like it will rip out major parts of the drivetrain. Same for revving it up and dumping the clutch from a dead stop. If I were doing much bracket racing (I haven't taken this car to the strip in over two decades), I'd replace it.