I set up the cleats on my shoes myself. No one can do it better for me since my pedal/cleat combination has some float. When I pedal, my toes will point inside some natural range. And sometimes I'll purposely point them more in, sometimes more out, just to change the force on my knees or when I purposely change my knee action while pedaling. I adjust my cleats so that I'm never up against the stop when my toes are pointing, as I say, inside my natural range. This makes Speedplays irrelevant for me.

OTOH, a minority have knee issues such that their feet must be fixed to keep their knees happy. These folks ride with a zero float cleat/pedal system and perhaps need an outside observer to get their foot angle set properly.