Hi Dan, The Tilton uses a Tilton Slave, which is about a 1000% improvement over stock, the quality is there on the Tilton... not the OEM by a long shot. No issues with the Tilton HRB's to date, nor have I ever heard of a failure in just about any application. They are designed for a spring that is about 50% stiffer than we are using, so it is actually way underworked. I will be honest and say Kai has had some difficulty with his Tilton, but it will be sorted out. He has worn out a great deal of the clutch in a hurry, but it is suspected this is due to a combination of a bad install originally, causing it to be physically damaged on day 1, (ate about 65% of the wear interval there) then when it was repaired/reinstalled, a faulty install again in a different manner lead to its failure due to wear from constant slight slippage in about 1500 miles. This was accellerated by the lightweight flywheel on the street, a LONG traffic jam, and a number of other issues small install issues. The clutch pack is far from dead- it still has 2/3+ of its service life left, but it will require a heavyweight flywheel for street use, as well as making certain it is put in correctly on the next go around. The other 2 in-service Tiltons I have installed are not having these issues, and the heavyweight version is showing extreme promise in the street-friendly application... feels like a stock clutch with a short/hard pedal... Smooth, no chatter, grabs like the dickens if you want it to, and modulates like you wouldnt believe for a 1500 lb/ft clutch. Unfortunately the Heavyweight Flywheels are on LONG lead times right now, but they will be a stocked item for next season- but PLEASE pre-order if you want one, as I only plan to stock 1 of each model year due to costs, and it would take 8 months to re-make another. I can easily add one in the begining though. As far as your issue, yes, overheating will warp any clutch other than Carbon/Carbon Tiltons, resulting in difficulty disengauging/shifting. The entire Tilton drive plate system is carbon, which cannot warp. The other Carbon clutches on the market have carbon "pucks" secured to steel plates, which are NOT immune to warping... they are really only half the true benefit, just the engaugement properties.