I was clipped in for two years,,never saw/felt/found any advantage at all..
,,,Rydabent is correct about tadpoles,,Tried a Tad,,didn't like it at all anyway..
I prefer the freedom of flats..
I wear the same shoe on all my bikes and have almost the same pedals..
Specialized 2FO flat out's:
That's bike tire rubber for a sole,,sticky good...

They are so comfortable I wear them at work,,on parking lots alot, they are wearing like Iron
These pedals are quality,, They bleed me now and then on the mountain bike when I make a mistake,,I play ruff !