Hi noo noo!
I can try to answer this, pulleys are there for a number of reasons:
- to rotate the kite around a virtual axis. For instance, a C kite turns around the front line attachment point, whereas for instance a bow kite can turn around an axis much closer to the canopy.
- to help maintain the shape of the LE when powering-depowering the kite. The 2009 and 2010 Waroos have this, some branches of the bridle have pulleys to load-balance the bridle better, in an attempt not to deform the kite. What happens when you depower: the kite tilts forward, giving another angle for the bridle, so the shape of the bridle doesn’t match the LE anymore. This can cause some of the bridle lines to loose their load while the neighbouring line takes it all, you can image the LE wants to wonk like that.
- to assist in (almost) full depower when the bar is send way up (like on the Rise). The pulleys on the Rise hardly roll, only when you put your bar way up it starts to move. They sit against a stopper knot for most of the time. This is the reason why they hardly wear, even thought they take the full load.
I have owned Shockwaves, and flown a lot of kites, and they all felt spongy, indirect and slow responding compared to the Rise and, for instance, the Bandit. Plus at 220lbs I easily tore the SW bridles and pulleys apart, the construction wasn’t up to it. No problems with the Rise bridles so far!
In my opinion, the pulleys can assist in building a great flying kite but if you don’t do it right it goes at the cost of control and comfort, and brings weak points to the construction.