So you liked it then?
Leaving them doesn't work so well either... You have to actively push the air out. It's annoying cos if you unpack them and lay them out, even without inflating, they somehow sneak air in and became a small nuisance to repack.
Cant downloop? I do it with the 21, so you're doing something wrong

If you're sheeting out and looping low, the kite will accelerate around the loop and you'll get hauled downwind. Either loop higher, or sheet out and let the kite rush to th edge of the wind and then downloop...