for over the past yr...i noticed that i was scratchin the would right next to the pickup where i anchor my thumb. now some of the finishing is scratched away. i just started learning how to slap pop. after a couple weeks of grueling practice..i noticed i scratched up the area right next to the g string where i slap popped. now there are two area with a lot blemishes. am i doing something wrong? is my wood too soft for me...its an ash body? or do i have superhuman nails?..i try to keep em trim most the time.