A couple years ago I decided to build a strat, because I couldn't afford one. I started off with a loaded CS 60's body from ebay, then a couple months later I got an MIA neck with maple fretboard. When I got the neck, I noticed something disappointing. The finish at the back was cracked along the skunk stripe. This means some clown messed with the rod too much, then returned it when they cracked the finish. Case closed on how it ended up parted out on ebay. I live in Trinidad & Tobago so returns are a drag and I decided to keep it. I built a Classic Player 60's after, and that became my main. Two weeks ago I decided to give the first strat some love and make it a joy to play. The bridge had no bar, and an aftermarket bar cross threaded the block ( I can be a clown too). I decided to change the bridge and electronics, as well as sand the neck. I sanded the neck with 120, then 300, then 400. The crack's almost gone and the neck feels great so far, but I'll be going higher (higher grit was out of stock atm). But I didn't think about what to put on the back of the neck after sanding. Do I rub something on it, or leave it bare. Bare in mind, I'm on a tropical Island so I don't get the usual weather conditions you guys put up with. I don't want to spray any finish on it to get it sticky again.