I'm on my second gallon w/32:1 lawnboy. Its never quit yet! After the initial start up to check idle and hi speed, its been in the air. The only problem with the 3W might be the carb diaphram press hole. Too much cowl air press on it will make the engine stalll. There is an easy fix addressed on the Aircraft international website and in the instructions of the engine. No big deal!
GO FLY AND BE HAPPY!!!!