Valve train geometry

The stands-shafts - fulcrums are just absolutely in the wrong place for roller tip rockers- any brand- can't be fixed with the rocker unless shorter arms are used and there goes your ratio
early roller tip rockers- some of them had the arm on TOP of the fulcrum- picture how that worked (or not worked)
the stands-shafts- fulcrums are also in the wrong place for long valves and double bad for long valves and roller rockers
and even less so but still wrong for high lift cams, lash caps`
That Hughes geometry looks like a disaster waiting to happen- get a set of valves with chamfers and take the rpm up
now put a large od spring- retainer in
that retainer is hitting or too close in the pic
thanks for the pics- worth at least 2000 words