Calling all corner carvers!

Thank you, this is the advice I was looking for. Any experience with the PST adjustable upper control arms? I guess they appeal to me because they have adjustable spherical rod ends. The QA1 control arms are not adjustable. Also, I’ve used similar design upper control arms as the SPC arms on a Factory 5 kit car and they were just too sloppy. Too many joints to tighten and they are heavy.