Hi Mighty9, that is what I have heard from others, hopefully the mounting plate idea will help as it can accomodate more insulators if needed.
I got 8 of the insulators on order so I can play with different options.

I left my phone on the plane a few days ago and it rang on silent mode, but with the vibrate on.
It made the whole plane sound like a drum, it was surprisingly loud.
I then wondered how much noise was coming from the plane and not the engine.
Sit your phone on your plane with the vibrate on and call it, you'll see what I mean.


Regards Mark