Well I'm ready to hover but can't get a calm day. Everything is ready I even went so far as to buy new blades. One problem now comes up. I balanced the blades and whe i mount them and spin up there is a bad vibration. I checked and adjusted tracking. still vibrates. I took the blades off and spun up the fly bar with the paddels and it was smooth. So can I assume it's in the blades? If so other then balance what should I do. If it isn't the blades then what should I look at?