By the way, where are you getting your bearings? Here are bearings just as good as the OS brand at 1/4 the price. This is what I put in th OS 91 fs I rebuilt and they work fine.

http://www.rc-bearings.com/catalog/p...05034e4df41254

If you really want the best bearings, the ceramic bearings are supposed to be better but the do cost more but are still cheaper than the stock OS steel bearings.