Hi guys. I'm getting a new neck for my cheap-ass strat copy, as the trussrod adjustment hole is broken. The neck is maple with a wenge fretboard, and it Is from a local dealer, so it's not an ultra cheap replacement, but still it's not fender. I want to do a tru-oil finish, as It comes unfinished, but I have never done it before. And my question is this: Do I need to sand the back of the neck before I apply the finish? I know it's unfinished, but still. What are your experience with replacement necks?