RE: Standing position for take off
The club I belong to does allow the practice of ' taking off a new plane while standing behind the plane'. The only requirement is that a second person is standing alongside the pilot to help him walk back to the flight line after take off.
I prefer to stand at one of the flight stations on all my flights especially a maiden flight.
Twice in my 30 plus years of flying R/C I have witnessed a plane taking off with a malfunctioning elevator where it was stuck in the up position and did a quick loop on take off. Thankfully no body was standing behind the plane(s).
There are too many variables on 'what can go wrong' to put yourself in harms way. Just my opinion.
Tom