We paddled yesterday in pond-like conditions from Fish Hoek to Muizenberg, where we started plying in some gentle waves on the backline. Catching my 3rd one, I suddenly broached and took a swim, luckily holding onto the boat with my toes by the footstraps. As I was heading back out....no steering! My rudder was gone. I made it the 5km back to Fish Hoek using counter-leaning to steer. On inspection: my Epic V10L Ultra's carbon rudder shaft had clean snapped flush with the hull. If that had been a downwind or rough water ,I'd have taken out my cell phone and called for help. I know the carbon vs steel shaft issue has been raised before, but I'm raising it again.... (ps I'm a great fan of the boat- that's not the issue.)