I too will vouch for Peter's service and help. I have flown my JB165 powered Rookie all summer long with great success! I did have a problem but it was self induced! I now run a 3 cell 1500 Lipo and have perfect starts every time! I have even called Peter on his cell phone on the weekend with a question and he is very quick to respond if he doesn't answer the first time! The quality of these engines is excellent. No plastic parts and very well made. What else can I say, i'm very happy with my engine!!