I have a set of the offset aluminum sm rockers for victor/Victor copy heads. I bought them cheap on a black friday sale. I have NOT done anything with them yet.
I'm gonna use the Victor's on a 522, but I'm planning on a fairly conservative cam, so gonna try the sm rockers. If run into any problems, I'll have to bite the bullet and get the $1200 rockers. If I need to do that, I might as well put a big cam in too.