Originally Posted by SlowBarless
Not to worry guys, we will get the issue sorted out. In the mean time voodoo, pop off the blades and run up the motor just with the spinner and ensure everything is running true a small imbalance somewhere in the system can be enough to knock the blades out of track.
Flap fluter could be possible, the sawtooths are usually a considerable amount faster on the same power then a standard prop. It's also strange how it's only happening once the plane has a chance to build up speed, normally if the prop wants to go funny it's going to do it within the first few seconds of launch.
There is no doubt they are faster then the GM 11X22,so tomorrow i am going to run the 11X22 on 5S which will be faster then the Sawtooths in the video to see if it is the flaps......But it is nothing in the drivetrain as all is smooth as silk