I got into the habit of carrying a little vaseline in a tiny screw top for lip balm. So I now have a lube and lip balm to stop my lips chapping. If you keep this on the cam, the operation is predictable and you can actually set your rudder pop up. On my old 16 I made aluminum cams jigsawed out of alluminium plate. I tapped a socket head setscrew through the "Gullet" so that it bore on the steel pin that runs though the casting integral to the tiller arm. This way you can adjust rake on the old style rudder set up. I dont guess it is class legal...You are then also able to tweak the radius on the cam where the detent ball pops out, with a file. (Stick two setscrews in each hole - one to set, one to lock the screws against one another)