I fly airblast. I like the 8.4 without bridles but I dont like the fixed loop for safety issues. I rigged a bungie loop system that works like the fixed but gives you a little more freedom. It have a second pourpose: As it is attached to the depower ring, it makes the depower rope rotates in parallel with the bar after spins, so no more leash tangles.
If you want to take a look:
http://groups.yahoo.com/group/kitesurf/ ... g%20leash/