I just ordered me a new Magna-Matic 9000, today. It should help in keeping costs down over the long haul. But one thing I've often thought of was how sharpening blades with a high speed grinder causes the blade to lose it's "temper". You know how the temperature of heating up the blade causes the steel to not be able to hold a sharp edge as well as when it was manufactured? My question is how are new blades made? Is there a slow grinding process? Are the blades formed with a sharp edge? Is there a special cutting process we can't duplicate? I'm just curious as to how they're done.