Mike,
Congrats again on the Concours. It was great to see the Black Magic fly. I'm psyched to get mine going now. FYI - I was running my OS 160 on 15% all week with a D.L. 15.75x10 3-blade. Never felt the need to use a 2-blade or bump the nitro. I even got scolded for flying too fast. Then again, I guess it didn't really get windy until Thursday and we were on our way home by then. I've flown this setup in heavy wind though (402 and 403 schedules only) and it doesn't seem to have any problems with power. That motor with a Mueller header / Perry VP-30 and Aeroslave pipe is super reliable. Only drawback is the weight but if you can live with that, you might want to give one a try.

John Pavlick