ive not long bought and fitted the same integy clutch kit to my new LRP engine, i like the finish of the flywheel its better than the HPI, the clutch springs are good, enabling the shoes to bite at the right amount of revs for me, not too high and not too early, enabling wheelies on demand, the alloy shoes seem ok for now, ive been keeping an eye on them, so far alls good, i did put a vented clutch bell on as i hoped it would keep the temperature down a bit, the one thing i had to do tho was shim the pilot nut as the grove that the clutch spring goes into was a little low, but i am running the LRP engine and not the F 4.6 or the K 4.6, might be ok on them engines, if not then its an easy fix, like i say i just had to put a shim on, all in all so far i can not fault it, but then ive only had 10 tanks of fuel through this engine and clutch