Yes Yes and Yes ....Exactly Alex and inevitably it only happens on a near perfect mirror finish
I think yer dead on with the piece of errant slurry or the rocking motion, I have been trying to rinse the stones more often, and hope for the best. I was really hoping that it was a Norton problem and when I switch over next week to Shaptons that it will disappear
switch? I thought the shaptons were merely an addition... wow this is all so sudden