Ive noticed a lot of rocker arm manufactures now give the option of either.

I almost have more faith in my comp pro mags vs the HS70025k 1.5 that came with ball only. But at least I didn't have to clearance them like so many do when using a 1.55 spring.

Is it me or do some feel the Harland Sharps are over rated? As there needle bearing PN cross references with the china needle bearing rockers but with two less needles but they do cross reference and interchange as far as fitment well.

Comp used to brag on there SS rockers being stronger and lighter as the Al. units produced. But now they push there own so called high end rockers made of al. at over 1k.

Still what is the advantage of a ball ball in a non oiling pushrod application in a say #600 or lower on the nose?