Zipp Hub question (cassette installation)

I just got a new Zipp 808 rear and the lockring on both a SRAM and a Shimano cassette are very tight to screw into the hub. Is this a normal thing for Zipp rear hubs? I just don’t want to strip it.

I just got a 2009 808 and my Shimano lock ring screws in easily. Yours doesn’t sound normal.

Could it need a Campy lockring? I have a set of Fulcrum racing wheels (Campy), and even though the hub body is splined for a Shimano cassette, the lockring thread is Campy.
-Joe

Supposed to be Shimano. It’s a red hub, the campy one’s are blue.

I just got a 2009 808 and my Shimano lock ring screws in easily. Yours doesn’t sound normal.
Mine is a 2008 and I know they changed the hubs in 09.

Bump, anyone else’s thoughts?

Have you put a 1mm spacer on the hub before putting the cassette on?

No the wheel didnt come with a spacer. Can I just one of the plastic ones from an old cassette?

Shimano cassettes come with the spacer.

No the wheel didnt come with a spacer. Can I just one of the plastic ones from an old cassette?
no, the plasctic spacers between the cogs are too wide, Shimano 10sp cassettes come with a 1mm metal spacer that goes on the hub before installing the cassette. Your LBS should have one, and for what it’s worth, my LBS gave me 2 at no cost as they had spares lying around the workshop.