I've put about a gallon through the mac 32 now on the stick and I get compliments and people impressed on how the weedie pulls the plane . It still has some tuning issues but I found some junk in the carb screen so that was most likely the issue, the regulator needle was sticking open too... I'm liking this gas thing, and only having $75 in an engine where most people I fly with have at least $350 in their gas engine (other than the guy with the $140 15cc engine)