I'm having extremely good luck with my Weber/Mcleod Dual Performance. It's similar to a Centerforce dual friction (organic material on the PP side, and bronze on the flywheel side) but without the little "finger" weights. Good smooth takeup, surprisingly light pedal effort, and I haven't felt it slip even under wide open throttle in 4th gear.
I've had a friend who had a couple of weights in his Centerforce DF let go, it wasn't pretty (little holes in his stock bellhousing.) That seems to be an exception though.
Also, you can't balance a Centerforce pressure plate because of the little weights, so you may or may not have a slight vibration.
If it's just a street car that won't be seeing any repeated slick usage at the strip, I'd recommend either. They both work very well for a high-HP street application.
Here's a pic of my Weber/McLeod setup, the disc is sitting metallic pad (flywheel side) up.
Troy