I did some searching and did not find anything that seems to help with my question.
I have had some people tell me that I should always turn on my TX (Spektrum DX6i) before I connect my battery to my receiver (AR600).
My DX6i manual says it does not matter which order I use.
The reason for my question is that I have heard about people who accidently advanced the throttle while getting their plane ready / positioned. If they had delayed turning on the TX they would not have had the resulting damage / injury because of the unexpected prop rotation.