200%
Evan, I might add that you need to lay the first coat on VERY lightly as a tack coat. Let it tack for 3 or 4 minutes, then lay on a light final coat. It will flow out to a wet look, and won't run unless you get carried away with it. In 10 minutes it will be dust free.
The base coat flows out very nicely when reduced 150% with minimal sanding before clear. What David and I are recommending works well with PPG paints and the Walcom STM gun set to the top of the green on the regulator.
Good Luck,
Dennis