What makes a “platform center offset” of zero a “good” number? The shoe is asymetrical, the foot is asymetrical, the pedal is asymetrical except for its platform - what makes the center of symmetry of the pedal platform an “ideal” center of force?
I understand that there’s a maximum efficiency area somewhere between your feet being 1 m apart and them rubbing each other, but nothing that I can see says that this maximum happens to be at the centerline of the pedal platforms. What if you add a spacer to prevent interference between the pedal and the cramk arm, does that move the optimum position outboard?