Ok. first question, I've broke in my engine (OS 46 LA) It made mess all over the plane spitting feul all over the place. I've now got it running at its top performence and I still have to wipe the plane down after every flight, not as bad but it still makes a mess.. Does this stop? or will it always make a little mess? Second question. yesterday I went flying and on my second flight of the day the plane died and I had to land dead stick. (thought maybe just a stall) restarted plane and took off again, the plane got up about 15 feet and dead again.. I checked the gas and made sure it was flowing with no blocks in lines. I checked receiver to make sure all connections were good. It felt like the battery line was loose. Would that have caused my problem if the plug was loose and shorting out? Last question .. About how long do most receiver batterys last? how often do they need charged? thanks for any help you can give..............