For all those who love Blue, Dillon also considers it a waste of time. Like everything else, if it makes you happy and doesn't hurt any one else, feel free to clean every primer pocket you want. It is your life.
Now, I have NEVER had a high primer from primer ash. With my Dillon 1050s, a high primer means the machine is out of calibration and needs to be adjusted.
Never think that Benchrest shooting case prep has any part in handgun reloading. In benchrest, if they can drop the average group size from 0.301 to 0.275, they have made a significant improvement. Handguns work in the 3-5" at 25 yard area and good reloads (bullet and standard dies) tries to shrink it to less than 2". We are no where near the goals of benchrest shooting and will never see the effect.
That said, the easy way to take care of it, at least it is easy to me, is to deprime all my brass before I clean. I inspect my fired case, deprime, tumble clean, and get ready to pour them into my case feeder. Using 20/40 grit corn, the primer pockets come out almost completely clean. If there is a grain of corn in the flash hole, it will fall into the spent primer container when I resize.
Don't sweat any of the small stuff until you are happy with your reloads using just the techniques required to produce safe and reliable ammunition.