Anyways, I'll add my experience with barefoot running:
- Forefoot/midfoot strike is the most important takeaway. Heel strikes are for walking (slow, low-impact), not running (faster, higher-impact).
- I used to get shin splints from sports like soccer and basketball. But as long as I do some barefoot jogging (1-2x/week) I'm pain free. I think it strengthens the supportive muscles around the knee and ankle. All the leg muscles, really.
- Speaking of soccer, anyone have recommendations for wide cleats?
- I only got one tiny thorn/splinter in the past few years of going barefoot.
- I'd rather jog on concrete than grass because grass can hide things like sharp objects or doggy dookie. In general, I run barefoot in places I trust, and I always scan the ground ahead of me as I run.
Note that I'm an amateur runner, not doing more than 5Ks. But cardio conditioning is my limiting factor, not feet or legs.