So I'm trying to figure out what hoop sizes some of these companies used. I have a few slingerland sets and they seem to be consistent 1 1/2 from radio king era until the 70s. At that point they go to 1 3/4. Ludwig seems to be consistent with 1 5/8 wide. However I have a clubdate kit that has a 1 5/8 on one side and a 1 1/2 on the other. The 1 1/2 I got off of another ludwig bass drum. Has anyone gone in to figure out who made what size at what times? If they were consistent at all? And for the record, My rogers kit has 1 1/2 hoops. And that kit is extremely untouched. I would bet that kit itself that those are the original hoops...

jason