Marvelous! BUT.. there were two words in your explanation that worry me... "strain" (to injure, damage, hurt) and "stroke" (and I don't have to define that one!) So, for now, for me, No Whip-Lash, though hopefully someday!
Great filming, music, your detailed explanations, and of course your skillful flying!
Congrats again!
Lol, yes well the meaning for strain is intentional. One should not be trying to reach back so far that it is uncomfortable. The trick can be done without that much effort. And by stroke, I mean sort of like a swimming stroke. Not a medical problem.
I suppose the name sounds kind of scary as well..... hmmm