I hope this is the right place to post this. Long story short: I have one strat with a "gloss polyester" finish with an amber tint and I just picked up a Tele with a "satin polyurethane" finish. I don't hate the Tele neck, but I LOVE the feel and look of the gloss finish on the Strat. A quick google tells me a lot about how to NOT put nitro over poly, except for when people say it's fine. I am assuming, because I don't know any better, that two poly finishes would play well together. However, the main places that carry this sort of thing for guitar, seem to only have nitro. I would like to avoid fully sanding down the finish if I can avoid it and keep the decals on the head stock. What should I be looking for to do the trick?