I always wondered why on earth you would have a flywheel skimmed. just thought what a pointless thing to have done and so not needed. then I fitted a £350 6puck cc clutch to my old knackered scored and warped flywheel and even the uprated 250% torque couldnt stop it slipping, incredible really and and just shows how trouble much a bad flywheel will give you. anyway I ended up just buying a brand new genuine toyota one and bingo, worked amazing.