First ride over 5 miles with my rebuilt '76 Grand Jubilee and the fixed cup unscrewed itself. Originally it was so seized I gave up and repacked the bearings without removing it - and yes I know it's right-hand threads. I suppose there's a chance I freed it up while trying, but it seemed quite stuck.

Sheldon says the only prevention is to make sure it's really tight, and maybe use a thread adhesive.

This is to be my commuter, but it's so comfortable I'd like to try it on a 200k brevet. If my commuter breaks down, walking is no big deal. Depending on the brevet, it might be a big deal.

Questions:

Can this really be tightened down enough to confidently go on a long ride?

If I buy the Velo Orange French thread cartridge BB, would it be any more resistant to unscrewing?

VO also makes an expanding threadless cartridge BB for just a bit more... good option?