OEM Rocker Arm Side Play

I bought a set of those spacers from MP through PAW but never put them on a stamped rocker setup. In 35 years of Mopars, I never ran a stamped rocker....On a hydro, there is constant pressure on the rocker from the pushrod (preload) and its not 100% perpendicular to the rocker shaft so they are always being pushed in one direction to wherever position that is stopping them. I dont think an idling motor will show any side to side movement of a stamped rocker in any application, just rockers that have found their operating position and do their job.