I can do the back roll with kite loop in the same style as the slow mo:
Perhaps even gentler than the slow mo to be honest. If I want control and not crash I have to go in really slow, make a small half jump and as I face backwards pull the back hand in really hard then land and ride away. I can transition or keep going. The kite is usually set up in order to keep going after the loop but since I have speed and pull it is easy to make a transition out of it.
The Sebastian Baumann version is cooler than I can do it.
If I power the jump more and jump higher, most of the time I get the timing wrong and crash really hard. I get yanked and fly backwards horizontally and crash hard. I guess it has to do with the kite looping while I am still on the way up.
I want to do it like this: http://www.youtube.com/watch?v=_oKG3cSHFkc
Any advice on how to think and time the loop, hold the bar in order to crash all the time most welcome. I know I could practice, practice, practice but the crashes are really hard. Looks like he loops the kite after already completing the backroll on the peak of the jump.