Interesting points. When a friend of mine applied for chiropracty school, we were given a tour of the facilities. One of the "attractions" was a full check-up by one of the nearly graduated
students, under te guidance of am old hand. The teacher immediately spotted a leg lenght difference in me, leading to lower back stiffness. Now and them, when i ride to high a gear, my right leg gives out sooner then my left (the shorty). Anyone mix and match cranks to compensate for leg lenght difference?