I've tried a few different types of finishes, water based, precat lacquer, wipe on poly, but I have always gone back to good old nitro lacquer. It sprays easy, and is easy to repair. There are some downsides though, its not all that durable, and takes a good three weeks to fully dry. For my last few builds I have been using this automotive urethane clear. Its fully cured overnight, its builds much faster than lacquer, it sprays just as easy, and its much cheaper than than the Behlens Nitro I usually use. Unless it is requested by a customer or something, my nitro days are behind me. Here is a Strat build I just finished for my singer. If its not raining and nasty like it has been the last few days, I'm going to try and get some pictures in the sunlight tomorrow. What are you guys go to spray finish, for a hard gloss finish.