Todd is correct. The St. Simons Island Surf Sailors have some awesome photos of mods for your rudder system. I sail primarily off the beach and I have done all but a few of these mods. I still use the bungee however. Pressing a piece of PVC into the rudder is a must if you are power cleating or you will eventually split the rudder $$$$$.

Re-drilling and moving the pin that the down line moves across holds the rudder down nicely (it will not creep back up) . There is a pic of this on the "Surf Sailors" site as well. All of there mods are bullet proof. I no longer have ANY problems thanks to just a couple of their mods.

Here is their link: http://darientel.net/~surfsail/

Good luck.

AJ
Nacra 6.0 EX w/spin (Blow Me)