Super Shoes or Super Screwed?

I think the main issue is that people don't want to waste their expensive shoes in training, so they don't get enough practice wearing them and may have issues over 26 miles. They do run fairly differently to normal shoes.

Funnily enough, I passed that guy as he took off his shoes and thought WTF are you doing? Hope the street sweepers were thorough before the race... Guessing he was on pace for a 2:40 or so but didn't see him again.

I haven't heard of these shoes causing more issues than any other shoe. Whether its right for them to be allowed in road races is another issue. The likely cause of foot issues is poorly fitting shoes, shoes that haven't been broken in (bought the week before the race, only run in a couple times, or even bought at the expo!), or very low mileage and few long runs in training. In the latter case, many qualify for Boston a year or so (even more this time!) out and then slack off the training as they've met their goal.

The next percent make my calves sore because they are stiff. The stiff feels good running fast but I need flexibility for running slow. Maybe because of the extra effort to push over tge rocker?