I want exactly the same thing for the double I'm building. I like the foam block idea but it is not adjustable. What if you had two sets of adjustable Yakima braces; one set (fixed) low for your feet and one set (for steering) high up by your toes?

I'd be interested to hear what you decide to do.

: Looking for a rudder setup that allows me to still brace my feet.
: I've used the sliding pedals but want more stability when I've got the rudder
: up.
: I saw a top tab type system where the braces stay fixed and the tops move a
: bit, also saw a continous loop systen that looks good. I don't a;ways use
: the rudder but would like to apply pressure to the paddles.
: I need a rudder for those windy days in the San Juan Islands.
: I will be adding a rudder, like it or not, those of you purist can sit at
: home and talk about kayaking but I plan to use my kayak and have been
: blown around enough to realize that this is reality, It seems as if there
: are to many experts who have never been in a kayak, much less fearing for
: their live when the wind is howling and you paddling like hell to get
: back.