I have no clue what angle he's measuring in this clip. The rider's leg is 49 degrees away from being straight and there's no way in hell he's talking about the angle as it's labled.
Is he talking about the angle from ankle to knee? On my measurements I got 10 deg there.
Anyway, I think I pretty much nailed it. Little did I know my saddle was too far forward. I guess I'll have to try this fit on the road before I'm totally sold.