yea i'm with spacemonk, once its on its back just really pull hard on the leader line on the side of the window u want it to relaunch, once it gets sum power and starts to race towards edge of window then just crank the bar back and ur kite should be bakc in the air.
Getting it on its back i find pullin in a little bit of fith line then swiming at it, shouldnt need to swim to far and it should be completely rolled over, otherwise yea u can just crank the fith line in till it flips by itself ( cranking it and swiming i find a lot quicker and easyier).
but yea i found wat space moneky says is probably the best way

works for me realucnh in under 20 secs.