EQ heads, Chevy rockers and what studs?

Pushrod length is likely off.
If you are saying the locking screw is too deep inside the poly lock, then your pushrods are probably too long so the poly lock does not screw down far enough. Check your rocker position to be sure.
I have Comp studs but have not test fitted them yet, although your question is the same for all stud mounted rockers.