Again this issue isn't the sole playing field of HS rockers... There are plenty of other rockers on the market that have or had the same issue. Yes people have/had issues with HS rockers and the fix has been known for a LONG time.
The ONLY rockers I've used that had NO issues with retainer clearance are Jesels at $1400/set.
I have other issues with HS rockers, but that's another thread. 8)