Button Clutch
I ran one in my five speed, didn't like it. Chatters like crazy upon engagement. It's nasty. They button clutch I had was ceramic on one side and kevlar on the other. You would never be able to burn it, but it would rattle your teeth out. I believe that manufacturer stopped producing that clutch due to the lack of satisfaction with the drivability. It didn't hold in my truck either. However, upon removal it was clear the pads had not seated properly. It takes a very heavy pressure plate to go along with the button/puck clutch. You won't like that either.