[HawgRyder]

Walt...it is my understanding that the green grinding stones are the hardest...so would be the best for holding their trueness..?
If one were to make a jig that held the rocker by the shaft bushing...and had a off-set pivot...so that the pivot was the center of the circle of the rocker rubbing surface...then would that be considered the best we could do?
The rocker would be ground (hopefully) true with the rubbing surface in an arc based upon the off-set pivot.
This asumes that the rubbing surface is actually an arc.All the rockers I have seen look like they are.
Bob