I've been more than dissatisfied with the quality of the cage straps that I'm finding now. And there are always problems with oversized tubes and parts made for the old standards.

I think I'd try RivNuts, although I managed to yank an aluminum rivnut out of my Litespeed, and have another one that is loose. I was considering stainless, but may weld repair them if I ever get comfortable with my welding.