The Okoumefest 2010 page two shows John Beck's gorgous 'Queen of Diamonds'
He has swapped out the line and cleat join of the rudder yoke and tiller with a sort of universal joint fitting.
I am building a Dory which will have cable steering and a slider traveling back and forth on the middle thwart. I'd love to use that fitting there. Any ideas about what/where/howmuch ??