FWIW
I have Rusty's adj. UCA's and LCA's. Not using jam nuts on either. Noise is minor. They seem strong enough, no binding while flexing (due, in part, to not using jam nuts), ride is ok (although I really don't have anything to compare them against other than stock). The price was right on them too. If I had it to do all over again, I'd probably go with something different because of Rusty's "inconsistent" customer service.