Hey all, I have an Ibanez BTB, natural walnut finish. There is no gloss coating over it, it seems like just a stain. However, I'm finding that it's taking too much wear and tear, despite my caution. When I bought it, there was already a thumb groove above the neck p/up, and some scratches between them. I've made the thumb groove deeper now, and added some some nice scrapes below the D and G strings, between the neck and p/up. I keep my nails trimmed as much as possible, and try to be careful, but it just ain't happening. (No Warwick for me, I guess. LOL). So, my question is: can I fill the scratches and grooves, and then apply a poly gloss coat (or 2 or 6...) to protect the body? I'm guessing some pre-treatment would have to be used... it's kinda shiny, so I'm guessing it's been oiled, which would have to come out before the poly, right? Or could it just go right over? Thanks in advance for any help, folks.