Don't you find it frustrating that most vendors sell centering rings in assortment packs or multi packs of 6, 10, or 12, when all you need is 2? The centering rings stash in my parts bin is growing logarithmically. And I always check to make sure I don't have a particular size before ordering. Jonrockets is one of the few vendors that allows you to buy individual CRs, but they only carry standard BT sizes. I have my CRs bagged and labelled, but I don't think I'll be able to use them all in my lifetime. Am I the only one with this problem?