dos 007,
my 220 has about 10 hours(about 50 flight). Bought in june .
The engine runs very well, like all behotec that I have. I used it @ 38°C and hi humidity level without problem. No one startup failed. Low fuel consumation compared to 160-180N class engine in the same model.
After me other 2 friends bougth it. All very happy.
When I reach first 20 hours I send you a message!
Here you can see my 1/4 starfighter during the first flight with jb220. About 3 liters in 7 minutes of flight. 30 kg take off
http://www.youtube.com/watch?v=xodMUm4nRqE
The sound is beautiful!
damiano