Thanks for the replies, I'm just going to hold tight until Wed and report back. I'm pretty confident things are fine. The threads most inbound that the BB's don't touch are of the same depth/ sharpness/ etc as the ones closest to the cranks. I'm putting this down to a combo of an old cartridge and not using a slathering of grease for my test. If things go south I'll consider chasing.


Anyways, idle hands and minds on a dreary Monday and all that.