ha ha... I hope its a great evening Wayne!
I caution against trying it over a tree to start with but maybe a gazebo or even a power line. Remember also that a slower yaw spin holds better altitude. If you yaw to fast inverted your gonna Jet downward too fast.
split the trick into two parts at first..
the donkey "kick" part is the forward snap into inverted. get used to pausing inverted (imagine the timing for the yaw spin)
Inverted yaw spin.. is what it is and good move to fine tune in any case.
The guy on youtube we saw do this added the spin to the kick. We saw that and about died waiting for batteries to charge and try it.
Season to taste and enjoy!