Andy,
when you talk to Guido Maiocchi, he will tell you why he uses a rev without a special bridle on the kite and also long handles:
the kite flys more direct and performs radical tricks is much easier.
As Gary said, flik-flak also works with standard rev-equipment. But for more radicl control you need longer handles. Add 7cm to the lower end of the handle and enjoy
.
All the other rev-bridles I have seen move the point of connection for flight lines to the outer side. In result the kite offers better control in spins and rotations. But all these new bridles make me feel the rev to be more indirect in control. Not the best choise for radical trick flying.