The HS rockers didn’t fit between the stands on this set of EZ’s either.

I didn’t mention the Indy 1.6’s as being a possible solution for fitting without modding the heads because they are no longer available...... but I wouldn’t be shocked if they fit.
I’m pretty sure both the Indy 1.5’s or 1.6’s would work on heads where the PR slots were in the original location.