I'm not a fan of this system. It makes the snuff more difficult and if everything isn't prefect can hose the spin shape in light are. I use stick on velcro on the crossbar to keep the sheet out of the water. I also use bungee tied to the ends of the spinsheet to keep the deck tidy.
Same thing here too...my compass sits right behind my forestay and I had this system wrap something around the compass once that made a serious mess out of things. it could also sometimes make the snuff really difficult (actually, I think it was relaunching it that sometimes would get really tough)..but we may have been doing something wrong with it. I eventually quit using it and we just make sure the spin sheet isn't any longer overall than it needs to be.
