Naw, good question. Better to ask than ruin a felt. I've only worked with 100% beaver blanks from Winchester. So take it for what it is worth. I go counter on top and counter on the bottom. Mostly because I am right handed and it is the easiest way for me to sand the felt. Hat class instructor said it mattered but I am not so sure it does as long as you always go in the same direction once you start. If you watch the felt as you pounce and the nap on the felt is getting really torn up...likely better go the other direction and see if that tones everything down some.