Well we were trapped out yesterday in a 12-15 knot wind and my starboard rudder snapped off. This was set number one that was hard and light. There doesn't appear to be any structural component (fiber or laminations) in it so I'm assuming it was just some cheapo plastic like ABS. I'm going to replace it with one from set two, the hard, heavy rudder set. Does anyone have an opinion on whether I should replace rudders in pairs? Other than, if my starboard rudder sheared then the port rudder can't be far behind. Also, after I cleaned the dirt off set number two I found an "M" embossed between the two holes and, above that, the letters "XX 1" and "AH" engraved on them. Anyone have a clue what that means?