I've seen many interesting posts on refurbishment and restoration of bikes which are interesting and instructive, but I've not seen much if anything on what to do when cones, in hubs and headsets or even BBs, are unevenly worn, marred or gouged a bit. It seems that most simply disassemble, clean, grease and reassemble. I have a lot of wheels sitting around that have decent rims and hubs except for the crappy cones. In fact, when buying used bikes or rescuing some from the balefill ( tip to you?) The cones are the primary problem in refurbishment. I could not locate cones for my Bromptons front wheel and wound up buying a new hub to cannibalize the cones. Also, it's hard to find new cones for many of the elderly bikes I encounter. Any strategies for this issue?