Didn't find anything from a search or the FAQ about this: Not sure if I can explain this correctly. When I pluck, I generally use my index and middle finger sequentially. But I've noticed that the tone from the two fingers is not always the same. In particular, the tone from my index finger is, occasionally, flat. Other times I seem to hit my finger nail and get this odd, scratchy overtone. I figure it has something to do with my technique, or genetics. If I trim my fingernail <i>painfully</i> back, I don't get the scratchy effect, but still sometimes get the flat tone. I can brighten the tone a little by rotating my wrist so that my hand is at about a 45 degree angle to the strings. (Not outward, but counter-clockwise) The odd thing is, my middle finger never has either of those problems. If anyone understands this, could they give me some pointers? Thanks.