>>1744799I'm tempted to do that
>>1744801The hub is a SunXCD-branded Novatec F272 or similar, cassette is Campy 12sp. It looks like the problem is that the hub's flanges and the tabs are incompatible. I found out that's why Chris King discontinued Campy-compatible rear hubs. I wonder if that's why Campy backed away from using the dork tabs for 13sp? Anyway, it looks like my options are to dremel, get an Edco or Miche cassette, or get new wheels. Thank you both and
>>1744580 for pointing my nose in the right direction.
Today's ride went way better. Found a nice path along a river that I wanna try riding properly when it's less busy, but it's fun to see everyone out with their dogs.