I have an Epiphone Les Paul with a painted fixed neck. The back of the neck is glossy black, slick, sometimes a bit inconsistently sticky and slippery in the sweat... Somehow, I'd just rather be a bit closer to the grain. I'm considering sanding the back of the neck down. Is this a bad move? (Wouldn't be my first.) This Epi LP is over 10 years old, and I picked it up on ebay. I'm looking for ways to like it better, and to get better use out of it.