Navy, I've not shot any of the new water base urethane product, but what I've seen and read about it is that it's a whole new learning curve, and that you really need a dryer to speed the drying time. Bottom line, my paint guy steered me away from it since we don't have restrictions on the acrylics around here. My paint guy has almost 50 years in the business, and used to be a PPG shop but shifted to independent a long time ago. He stocks HOK for those who want it, but he pushes Matrix, which was developed by high level guys who left PPG and started their own line. You can take a PPG code and it matches point for point to Matrix, but their pricing doesn't include the marketing bump. He told me that the water based line is not for the home hobby painter, but is geared to the production shops that can afford the equipment, or that get their equipment free due to their volume of business. Now I could be totally wrong, but I'd advise you to go talk to a paint guy you trust and spend some time before jumping into water.