The BME needs very careful tuning. Make a mistake and it will cost you $450 for new cyliders and pistons. The support for you is not like DA's that is for sure - any heat issue out of the box and no matter who's fault it is you will most likely get the blame. That said, the 110 is an awesome engine and if you get it right it will reward you handsomely with reliable power and lots of it. I have had not issues with the two we set up, but I know some people who have had problems with heat.

I almost went with it on my QQ Yak, but decided on the 3W QQ106 with the new ignition. So far, that 3W is the nicest engine I have had a chance to work with. Easiest starter I have ever seen. Weighs the same as the DA (good for balance) but puts out a TON of torque and power. I am running a 26x11 3 blade prop at 2000 feet in 110 degree heat and it hauls a 26 pound model out of sight in seconds. Love it!! It will swing a 28" prop if you want it to!

I have used DA's and worked on some older BME engines as well. They are all good it and it really comes down to what you are comfortable with. I prefer 3W and DA for the excellent service but Ironically I have never needed to return an engine to either one of them. I can't say that for the other ones I have tried....

DP