What application are you wanting to know about, street, street and strip or race only and intended HP and RPM? shruggy
All out drag race with high RPM and high spring pressures then you would end up with a paired shaft rocker system that uses ball and ball pushrods only shruggy
I have used many sets of Harland Sharp rocker arms on many 800 +HP lower RPM(below 8000 RPM)race motors with single shaft rocker set ups with ball and cup with no issues also work shruggy

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)