IMHO "set" in magazine springs are a myth, I have a couple of Colts, a 1908 vest pocket .25 that has had the magazine loaded since about 1923. Yes the ammo get fired out every 6-7 months and reloaded. Same for a 1903 .32 and a Colt government that has had all 4 mags loaded since1980 or so. Never a bobble in any of them.
I have worked on WWII 1911's that have been loaded since the forties and they also have always worked just fine.
