Hey guys I would like some help too. I got 2 new fora .049's from Hobby Club last month. Me and another guy that fly speed limit combat want to try some 1/2a combat. We have some cores and are going to build litehawk type planes. For testing the motors a few weeks ago we had 1 brodak gladiator and a prototype hawk. 1st run on 10% omega with a cox 5-3 cut to 4 3/4". The engine reached 20 to 21,000rpms. 2nd run on sig champion 25% and the 5-3 cut to 4"", we hit 25,000 on that one. Both motors acted the same. So, my questions are- Break In? Props? Fuel? Head shims? Any help would be great. I have run many TD's and Norvels but these are my first Fora's. Was wanting Profi's but could not find any for sale. Thanks, Mike