Yeah, I know every application is different, and everybody wants everything just so.
... But by an odd coincidence that's not really coincidental, if you can't find a close match to your ideal spring in Lee's catalog, then you'd better start your design again, because you're doing it wrong.
I'm not saying there's no need for custom springs, but _all_ of the custom spring applications I've seen, requiring special wire, special tooling, special processing, were custom precisely because some idiot had painted himself into a corner by not selecting a spring before everything else was done.
If you take the trouble to work out your design's needed spring parameters early, and then try to design a good spring to do that job, you'll find that Lee (and the other stock spring houses) got there first, and you don't have to do any detailed design to get a good spring; you just send them a little money, way less than a custom spring would cost.
Mike Halloran
Pembroke Pines, FL, USA