My wife and I both qualify for the Clyde and Athena forum, but we're working on that! She has a problem, though, with her feet going totally numb. Well, actually her toes to the balls of her feet. This happens by the 13 mile point of a ride. We stop, she walks 'em out and she's good to go....for another 13 miles.
She has had bunion surgery on both feet and probably should do it again, so her naturally wide feet plus bunions make it hard to find comfortable shoes that are wide enough. She found some Northwave's that work pretty well and she's riding SPD pedals.
Any insights as to how to make the numbness stop. Her longest ride to date is 70 miles, which was tough, but she's looking for more organized metrics to ride. To eliminate the numbness would make them that much more enjoyable/less miserable (depending on how full your glass is! )