When talking about the angle of the feet what is not mentioned is tibial torsion. It was at least acknowledged in SS3 which I cannot look at as I have lent it out. It did state that placing the feet at 30 degrees was a starting point and not an absolute.
When my knees are pointed forward my left foot is externally rotated ~10 degrees and my right foot is rotated ~25 degrees. The rotation of my right foot seems excessive and when I ride a bike my knee wants to be pointing straight forward which makes my heel hit the frame of the bike.
Obviously both my feet should not be at the same angle when squatting. When I started squatting 4 months ago I set up lines on the floor so that my left foot was at a 25 degree angle and my right foot was at a 35 degree angle. Is this an appropriate adjustment? My right knee will never be over my foot (at least the front of it) no matter what angle I use. Are there other anatomical cues to use to get proper foot position?
I tried to find out what is a normal tibial torsion and the only thing I could find was an old study that said 20 degrees was average. I find that hard to believe because my 25 degrees feels quite excessive.