Sorry to wake this thread from the grave but I just bought two sets of Ichiba V2's myself 20/25. I want to install so badly, but can't help but notice that the inner aluminum rings aren't all the same amount of snug. 1 is on extremely snug, whereas the other 3 can slide in and out. One of those 3 can basically slide without effort. Shouldn't they all have the same amount of snug? Does it not matter? Emailed Ichiba today, but ANY INSIGHT WOULD BE HELPFUL!