My own "re-aligned" 3C frame returned with a distorted head stem, both bearing counterbores were quite oval! Took a lot of heat and persuasion to bring them back to an acceptable shape. Frame cracked a few years later, twice actually, and was then heavily gusseted. Steering bearings still don't last as long as they should and the bike still runs 2-track, but only by a couple of mm.A bloke who did frame straightening in Brisbane got the job to straighten a 3CL crash frame, despite the quote saying it should be replaced. It came back bent three times after his attempts, with him refusing to try more as his straightening jig was pretty well fucked after repairing it after it bent with each failed attempt. Big hassle with the insurance company.
piet