Honestly...... I really am too busy to play with any other type. I'd like to, but simply don't have the time to assemble or test them. If I was doing this full time and not just as a hobby, I think I'd be willing to branch out more.
If you needed a few small parts plated, I'd be happy to do it just as a neighborly thing, but I'd rather stick with Holley's for the time being.
I do the same thing and have to pass up work for folks wanting Rochesters, Edelbrocks, or Autolites to be worked on.
Thanks