I have bean using the DD tail mod for a long time.
I finally burnt out my last motor and had to go back to the original motor and tail blade. I took it outside today to try it out, now I remember why I changed to the DD tail. It had severe tail wag and when turning hard the tail would almost stop spinning. This got me to thinking That maybe I could take some material off of the trailing end of the blades, and thereby taking some load off of the motor.
I scribed a line 2mm along the trailing end and cut along the line with a pair of scissors. Fired her up and alot less tail wag. Cut another .5 mm And tried it again, even better. each time i cut more material off of the blades there was a significant tail motor increase in speed. It's 9:00 pm will have to wait until tomorrow to try it outside.

Has anyone else tried this? Your input is much appreciated :