Here's my first take on the comparision between the 2 bushing upgrade kits:
The CHE kit uses a spiral lock clip instead of a snap ring like the Straub kit.
The CHE trunion shaft is .709 vs .625 for Straub but this does make the bushing thinner than the Straub.
I still like the fact the Straub kit has oil grooves in the shaft
Both kits rotate very smoothly with vitually no drag, I honestly cannot tell the difference in resistance between the bushings and the needle bearing, but this is with no load so that could change.
When we pressed the bushings in flush with the outside of the rocker on the Straub kit there was .025" of axial movement of the shaft, so we machined up a fixture with a .01" step in it to press the bushing past the outside and closer to center which gave us .005" axial play and also makes it so the snap ring isn't trying to control the axial movement. I would like to see this bushing about .10" wider than it is but it's not the end of the world the way it is.
