Okay, first of all... I apologize. This isn't a telecaster question per se, though it might be one day if I'm able to accomplish what I'm trying to do. Plus, you guys know way more than people on the other guitar finishing forums. I've got a crappy Squier bronco bass that Squier says has a "polyurethane" finish on the neck and fingerboard (though it must be like 1 coat of terrible poly because the neck looks and feels bare). I've read all the posts here about neck refinishing and I'm sold on gun oil. The one super simple question I can't seem to find an answer to anywhere is whether or not I have to strip the poly that's on the neck already, or if I can just put on the gunstock oil right over it? Thanks so much guys. I'd be lost without you.