If yours is a Bonanza, you've missed out on at least some upgrades from Forster since they took the design over.
Oley55,
The cross-bolt rings used to be steel. I'm sorry they changed that. It's the one downgrade in the system to my thinking. Here's a funny thing, though: you can slip the O-ring Lee die locknuts into the channel and the rubber in the rings still allows some flex. Seems to work fine. The only issue with those rings is they have no lock at all, so you want to put a registration mark on them if you use them so you can get to the same place each time.