A spring is a spring is a spring, just as a nail is a nail is a nail, so the analogy
"...If you want to get into theory and all the rest of it, it would be better for them to sell springs PRECUT, instead of having you do it at home with who knows what kind of tool. THat way they can regulate the cut, the direction of the grain (yes, metal has a 'grain') and temper the cut. But they don't.
Like I said, if he REALLY thinks that spring set is a REAL problem, then he must get his springs changed every rotation, because spring set would affect ALL springs, not just mag springs..."
I get it, you're joking right? How does PRECUTing "regulate the direction of the grain or the temper of the cut??? I think your grasping at staws here. Seriously though, ISMI sells their springs long to accomodate the hundreds of different "OEM" magazine lengths, styles, and capacities so you yourself can determine what length works best for your needs. I'm sorry those springs don't work for you but for my SA45 7/8/10 rounder, HK USP45 12/17 rounder, G35 15/20 rounder magazines are all ISMI. Given them a call, I'm sure he would be glad to refund your money. I don't work for them nor do I purposely advertise for them, I just know their springs work. Funny, for the longest time I thought BMW too was just a whole lot of hype- till I drove one.