[cgarr]

This is interesting: It is very difficult to get any surface perfectly flat, you can grind it, surface check it for square but when you check it with a diamond sheet on a surface plate you will see all the imperfections. When I say "imperfections" you would never feel or see them. Thats the reason for break in, you have to let everything get happy with each other.

In most cases if you get 80% rocker contact thats normally pretty damn good, all the above dont look too bad to me. Look at the pressures that are applied to the rocker. The cam pushes on the right side of the rocker center line and transfers to the valve foot left of the center line, this automatically puts a twist in the rocker and bushing, you can really see this if you ever remove old bushings. The only problem I have found is if they are out of square by too much you will get higher pressure on one area of the pad and it will start pitting much quicker and even more if there is any loss of oil most times at start up.