Hoyt..... the "CC" part of dog training last maybe 9 days (I use the Lardy way not Evan... but not that many ways to shock your dog)........ but after CC, once you go up and down like you say and find the working level of a dog. That is purty much it. On my TT 500 I set the dial to 2 for Scooby Do, my old psyco rescue chessie but could correct him with the tone button, he has some issues. And when I put the same collar on Loco my young Chessie I set the dial to 5, but he eats yellow jackets and flosses with barbed wire for fun. Both dogs are happy.
It is good you are shocking yourself. We all should feel the thump we give.
But for real, just pick a level. in that level you got low med and high.
to ease your mind maybe send in your collar to colar clinic or TT for a check up.
but I say pick a level and light um up!!!!!