I sanded the back of the neck of my MIM esquire. just wanted to take off some of the shiny an slick poly but went all through to the wood very fast. so I took it all off. do I need to seal it with oil or something so the wood is a bit protected? what would I use? I read an interview with bill nash in which he states that taking off the finish from the fretboard (or fret-side of the one piece neck) would give a better sound so I am thinking about going all the way and take off the finish between the frets also. how would I do that without ruining the frets?