Hobie Cat SSI Third Hand Tiller Extension Holder part @ 204
This is the closest thing you can get to self-steering on a Hobie Cat. This “Third Hand” works only with the Hobie 14 and Hobie 16. This handy little device grips the hiking stick, holding the tiller at whatever position you please. Great for light air sailing and keeping the rudders from moving while on the beach. The third hand attaches at the end of the traveler track.
Hobie part # 204