[lumberjim]

It works. I tried it with the nut side on 10.5 and the heel at 18. Keep in mind that the top of the rocker board always sits exactly 1/4" below the red line. That's cuz the pin moves up and down the side board. The pivot point changes, but the board sits straight. I haven't run the router over it yet, but when I rock the board, it tilts a bit wonky, but the lateral angle is minimal. The longer radius side describes a longer arc, so that side goes farther, but the top edge is the same height the whole time. It's pretty cool.

I'll do a little video clip illustrating that tonight if I get home early enough to get out there.