Thanks for all the info guys..........
Thinking about this I think my problem is anatomical. I've been told by more than one professional bike fitter that my right leg/knee drifts/falls to the outside on every rotation. I attribute this to compensation for a vast amount of broken bones (all on the left side of my body) over the years of competitive sports..... dislocated ankle, tib/fib, radius/ulna, wrist, collar bone and of course last years torn rotator cuff.
I'm going to try BB's suggestion and rotate the rear 3' cant disk ever so slightly counter clockwise so there's some of that 3' ramp to the outside of my knee instead of directly behind. That adjustment will hopefully provide some resistance to my knee trailing behind on heel sides. We will see what the results are when I go back out next week..