OhYeah
I'm about your weight (80kg) I have been ridding the Vapor X for about a year now as well and i'll agree with Mike that it is the best kite that i have ever used! and like Mike i have been riding for just over 10 years. I use it for everything Waves, Race but mostly flat water freestyle. it has incredible boosting! since i have been on this kite i have easily got the biggest jumps (height and hang time) i have ever done. I love it! and like Shmidy said its designed by an Aussie too

DISCLAIMER: I work at Airborne Kitesurfing and we sell Airush. Normally i would feel bad for pimping like this but not in this case as it is because of the 8m Vapor X that i am working here. I was riding for another brand when i first tried the Vapor X and as much as i loved my old kites after only 5 mins of flying the Vapor X i had to hit Airush up for a deal and jump ships.
As for the Park cant say much about the way it fly's but i have seen one do the death loop thing but it wasn't a line caught around the wing tip it was the leash snagging before the bar had run out far enough.