I've used a lot of Martin-Senior products from NAPA- 'cuz they're not as expensive and they have won me awards for my paint even up against the 'BIG BOYS" who paint in PPG,House of Kolor, etc. Experiment till you find what you like. I've used PPG and liked it but once again- cost put me back at my local NAPA jobber. I just have a felt filter on my compressor and a BIG water trap- we get lots of humidity here.... Paint+humidity=paint failure! Again, good luck and check out articles and books- quickest way to learn!!!