I have read that this a trick that is used from time to time. Are you doing this on a new pack or a used pack? I assembled a new pack and find that when you add that extra steel in the middle the outer fiber against the pressure plate is 20-30% outside of the outer baskets fingers. When I adjust the clutch lever and pull it the outer fiber is only hitting the basket by a hair (maybe two). Well over half the disk is sticking out past the fingers. I don't see how this will last very long.... I will try to burn/seat the clutch in tonight then recheck, I may just wait and save that trick for use once we get some hours on the clutch.