I'd be interested in experiences with mounting too.
Intuitively, I’d have thought an “isolating” (soft mount) might be the answer, but potentially, oscillations could be magnified.
Backed up by SimTestFlights actual experience, it seems.
The rigidity possible with a single point mount on a plastic case (GoPro) is limited, and many of the mounts available (clamps, extensions, etc) would introduce less rigidity.
Experience on Motorcycles, Mountain Bikes and skate boards – helmet/head mounting is a good option as far as vibration reduction goes. (Even seemed smoother than chest mount on the off road MTB – must be the gyros in my {aging} head)
Pre HD/GoPro, I had good results in a helicopter with a hat mounted “Helmet Cam”. I can’t recall any vib issues with that setup in a machine with 2 big blades.
What’s been the best solution to “piping in” the ICS/Radios (A mike stuffed in a spare headset achieved predictably poor results.)