As I understand it, the bigger the difference of tension on front flagging line and slack on rear lines the better chance of the kite dropping. Hence, pull in depower first and chucking the quick release (or at least the bar) all helps.
I've also been trying hovering it about 3/4 width above the ground before killing it and it seems to work better with a little crash land. Will try the upwind movement and wind shelter tricks too, esp when windy.
NB: Don't worry about your lines getting tangled! It's easy enough, once the kite is secured / sanded down to go back and pull the bar and lines straight and untangle and sort out.
oh, and just in case, I make sure down wind is clear as it sometimes does a few flips but will settle in the end on the flagging line (preferably face down)