Want to know what TOB you guys are running as I have a stage 4 south bend clutch with 20k miles and its slipping under full load when rolling. If I pull hard from a stop through all gears no slippage or issues. If Im rolling at 40 and drop a gear it will stutter heavily then catch and go. I have also had issues with irregular clutch engagement points. Like im searching for the right spot always, also at some points the clutch grabs like new others times grabs like its toast. As if one side of the clutch disc is worn down, or flywheels if uneven. I make around 500 to the wheel, I replaced: pressure plate, TOB, clutch fork, pivot pin, clutch disc, flywheel, slave cylinder, stainless clutch line. Do you guys have any input on what caused this issue, what parts are recommended when I do the clutch replacement. Its kinda pointless to have a car this quick with a clutch that holds 50% of time. Did manage to run down a E63 AMG yesterday but it needs to be fixed.