haha why is everyone changing my original post, you know that stuff is copyrighted right, haha.
You wont break trannies using a six puck any more than any other heavy duty clutch, if you drive it right you dont get alot of chatter at all. They last freakin forever and they grip hard with no slipping at all. My non sprung 4 buck with extreeme pp is really easy for me to drive, its when the cable starts getting notchy like mine has recently started when it starts to get a little jumpy, mainly because the cable gets caught just before where the clutch will engage. i just need to make a slight adjustment to the cable to correct this. Before that it was as smooth as any other clutch ive driven. I guess its all driver.