the puck clutches do take some getting used to, if you aren't gentle with the pedal you will have some really herky-jerky starts, but once you get moving it's just like any other clutch. I have the RPS 6 puck Street version and it will hold about anything I can throw at it (see profile), and the pedal feels just as light as stock. the downside to puck based clutches lies in longevity. even if you baby a 6 puck clutch it's not going to last 30k miles. the full faced clutches are much better suited to street driving and living a long healthy life.
whatever you do, get RPS...don't go with the JWT, whether it's the severe duty or not. my previous car was likely only putting about 400hp to the wheels and I still got slip-age. I broke it in perfectly too...