One important note here:
Maybe it LOOKS like the kite is just swung back and around in one move...
But this is definitely not the case, and it might go horribly wrong if you do so
One thing is sure - it will NEVER become a megaloop if you do it like that
You have to make a jump to get max height, so you must NOT pull the kite back too early, and never in one single move (well, you can, but it'll become a totally different trick and not a megaloop).
When approaching the apex of the jump, you can loop the kite.
Some makes a normal max jump, and then decides to make a kiteloop or not, at the apex.
Others start looping the kite a bit earlier - so they have to decide on the way up.
No matter what - when the kite is fully around, and you have sufficient height to get the kite to "catch" you (meaning fully around and about 12 again), you will get a (relatively, as you might have loads of speed) soft landing, no matter if the kite is overhead or past overhead.
The problem straight overhead though, will be that your lines get slack and you "underride" the kite.
If you have the kite past 12, and maybe loop it around twice - you will get firm lines and a much better (and easier) "finish".
I dont really agree with those saying you need a fast (turning) kite - as I havent seen any newer kites that can not make a kiteloop easily
Kindly, Peter Frank