Re: tillerlock vs tiller clutch
I use a simple bungy cord from a cleat either side of the cockpit with either one turn around the tiller for light air or two turns if the wind gets up a bit.
I wrapped a piece of aluminum around the tiller to stop the bungy from biting into the wood of the tiller. It does just fine with the tiller just stretching the bungy a little with the wave action. Also have a tiller pilot that will really hold course when I'm up on the foredeck when the wind gets up a bit.
Cheap easy and not in the way