Those tip rollers look small, or is it just my failing eyesight?
If yes, they oscillate over a greater range than "normal" rollers, which means more needles are loaded*. Bad: has fewer rollers.


* The roller arc (degrees of rotation before reversal) is a function of its diameter and net lift. 10" rollers will move 1 degree with .500" lift, and the entire load will land on a few needles at 12 o'clock position.

Needles where you don't need them make me nervous. Ever seen a Harley that lost a lifter? The loose needles get between the cam gear teeth, which blows the right case into junk.