Hey guys, So I just did Victor Wootens DVD groove workshop, FANTASTIC, I cant recommend it enough! Even though he does not really focus on technique I can now double thump. So I have been doing it alot yesterday, and today. But it seems it is filing my fingernail down a good bit. IS this technique dangerous for the fingernail? I cant see a calous forming on top of the fingernail, but maybe somehow? Anyone any input or experience with this?