Couple things.

First is that I have looked at the PRW stuff but decided not to sell it. Just seemed to be a Chinese knock-off of Crane's (RIP) kit. I already sell a bunch of Erson and Dove parts so I did not see the need for yet another in my line-up. I can't say anything good or bad about the PRW parts themselves.

The Inspector was having a rough day. He's normally "spot on" but missed on this topic.

A bronze bushing is a pretty good bearing material and application. That is what's inside of nearly every floating connecting rod. Does not make it mandatory - as a bushing can reduce the section thickness of the arm itself. But the bushing is a good thing and equal to or better than a roller bearing in virtually all applications where oil supply is adequate.

The roller tip at the valve end works pretty darn well. Point contact is perfectly good as a roll couple. Truth be known you cannot physically have any larger contact patch on a roller bearing. You don't get much roller rotation because of the small arc of travel - but uncoupling the rocker arc of travel from the valve tip vertical motion is all that's needed to be successful in that application. You won't gain a single horspower, but the guides will live longer.