@kdfrawg The car I recently crashed had a warped flywheel, often the clutch would shudder violently on takeoff. The answer was to have another go at it, and it would grab a better part & work smoothly.
My mechanic suggested that approach as it was only a "minor' inconvenience. The plan was to have the flywheel machined at the same time the clutch pack was replaced as about half the engine had to be dismantles to access it. Big expensive job to do before the clutch wore out.
It had done 260,000 km by the time I killed it & there was still plenty of meat on the clutch.