Waldo,

At this point, I would just be happy if there is an adapter that I can stick on the back of my phone and mount to the F3Cycling stem base. It would have to be a Wahoo compatible "disk" (the male mating part if you will).

Have you modeled anything like that, and if so, have any for sale? I assume it would be cheaper than the $40 option that F3Cycling is offering.

Please let me know.