Joe, Thanks for the insight, I was refering to the durability of cast springs. I'll bet Jud can forge for improved geometry and function.
I never ceased to be amazed CJ! Not only do you understand and perform excellent handwork, but CAD and modern manufacturing techniques as well!?!?
EDM "wire" cutting is one of the more aptly named processes; I envision a micro-jeweler's saw blade hard at work. I'll bet they work like a charm. After (in the case of the ejector spring) the many hours of gunsmithing required to cut, fit, harden, temper and tune them.
Great photo too!
Thanks, Steve