I have a kero start 140 and have had no issues. It always starts great as long as the battery is good, it does take a lot of juice to start but can get at least 5 flights on a charge of the 3800mah Nihm. The starts are very easy and non-eventful. In my flash I burn about 100oz in a 6-7 minute flight, which is usually heavy on the throttle. As far as flameouts- not an issue, nock on wood but of the several kingtechs between a few of us ( 12-15 ) there has never been a flameout.