im all about southbend because i know the customer service you will get from Andy. I have a southbend clutch that i need to install as soon as i get back from PR. personally i have experience with ACT. i had a HD plate and street disk with my XS kit and i was happy with it. however it did start to slip when it got hot. then i upgraded to a XT plate and 6 puck. it was a harsh engagement but it grabbed right off the floor (the way i like it). and no slipping.
i have an RPS in my Supra and its ok, but i dont like how high it grabbs off the floor