i'm still not sure i wanna run up past 15psi on stockers, even with the higher octane to control detonation.(?) i think arnel runs 17psi on stockers, but i don't know if he's had one fail or not. and btw, the local paint store wants ~$12 a gallon for toulene, so look around. i ended up finding a chemical supply co for ~$4/gal. -Chris