His opening statement as I understand it. There is what appears to be a 1/4" buzz on all the surfaces, this occurrence begins at about 1/2 throttle and continue through full throttle, my first thought is high frequency vibration, back in the day before I moved over to 2.4 this was a typical setup on my 72mhz. stuff, 1/4 thick foam with Zip ties strapping the receiver's down snug and no buzz issues for many years of flying this way, now I have seen prop or bent crank issues cause this surface buzz before, but not in a very long time. Anyway I guess time will tell and I do hope you get everything worked out.

Bob