PDF during my quest to get this plane flying I like you read all the advice on these pages. Many of them described the very problems I was having but suggested all kinds of engine malfunction/design issues and such as being the culprit. It was not,and I chose not to buy into it. I have read where guys have replaced carbs (mostly DLE) on new engines that have miraculously cured the engines inability to run reliably. They then proceeded to dismantle the "defective" carb only to find the problem was............... there was none! I think they got lucky with the new carb and the initial settings that they failed to find on the first carb or were just to impatient. I am a luthier (guitar maker) and have been since 1978. I can do guitars in my sleep and they are very precise pieces of equipment. The nonsense I have read on forums about how to fix guitar problems can be endless and nauseating! I can't speak to any other engine brand but if you get a DA it will be good to go, just be patient and find it's sweet spot. I would be happy to personally help talk you through your move to gas if you like, just let me know. All those Gremlins I slayed are fresh and hanging on the walls of my mind to reference................