Jetpainter
640cc Uber Pimp
At least that one didn't look as death defying as the first flight sounded, so it's getting closer.
Not sure about the Futaba, but on my spektrum I just use a throttle curve on a switch. Even if you don't use a curve you can just modify the low need and raise the idle off 0. I do this on my gassers, and on my larger electrics. Although I don't have anything that big.
That's it...blame it on him! Seriously, for someone who said (more than once) "I've completely lost it"....you (or your son) did a good job....considering......Earle.
My son filmed it with a 2 inch screen.