O.K., I have a very nice Brice (hey, that rhymes!) 6 string that has one minor (I hope) problem - the nut slots seem to be cut too deep. I say that they *seem* to be too deep, because I thought I had heard that the strings should sit in the nut slots so that half of the string diameter is in the slot, half is out. In my case, the *entire* low B and E strings as well as the high G and C are in the slots. Assuming that the action is otherwise fine (that is, the strings don't buzz and are not below the frets), can I just file off some of the top of the nut to allow the strings to sit correctly? Thanks!