With this question I'm only concerned with making your own 1/8" and 5/32" music wire landing gear, which I do often. If your not satisfied with it's rigidity at the bends after forming something up, I'm wondering if it is possible to re-harden, temper, or whatever, to get the durability back? If so, what is the process?
FWIW, I always use a K&S Mighty Wire Bender with these sizes so it's getting the proper radiused type bend. Maybe it's just me, but even only being bent once in a given spot it seems like it loses something by the time you've formed-up and finalized your piece. I have heard before that there can be inconsistencies in the wire to begin with. If so, how can you tell if you've got a "good" chunk to start out with? I'm sure that could help.