Stop in for a cup of coffee

MMMM a morning D cup! I mean k cups!


I wanted primer in the groove for the piston boot. I came to the conclusion that it would be easiest to do it this way and clean out the piston bores and seal grooves after painting.
I masked off the surface on the LCA pins where they fit in the K-frame. So you think my urethane bushings will bind even if I grease the pins?

I personally would leave them bare metal at any rotation point and where the go into the joint. Why primer in the boot grove?