Those are good tips. I got my new prop today so I will try it out when I get home. I think I'll do what you said and check the run out on the motor shaft and adapter when I get home. The tracking on the prop tips is a good idea too. Thanks for the advice. I'll post my findings later. I'm taking it out the field tomorrow as well to let the "brain trust" review it as well. I am really new into this electric stuff as well... 3 weeks so I'm learning as I go.