For those of you who are interested in stripping the polyurethane (poly) finish off of a guitar/bass/whatever, I recently found a few videos with this technique on YouTube. Looks pretty damn sweet to me. I have a poly-finished guitar I have always wanted to refinish, but never attempted it because I didn't want to deal with chemicals or have to sand through the thick finish on it, which would have taken forever and created a ton of dust. If this works as shown, it looks like I should be able to take the finish off in no more than 10-15 minutes with this technique, tops. I won't use a metal scraper for removing the finish though. I'll probably just use a plastic dish scraper with a semi-sharpened edge on it to get underneath so it doesn't mar the wood. I'm still not sure when I'll get around to trying this, as I am not ready to do a build right now, but I thought I'd share this technique with everyone. Cheers.