Today I took off my shoes, and it was amazing. I went for my longest run in a long time, and on the way back I stopped at a school that is close to my place and ran barefoot around the field 4 times. It was cold probably about 10*C or 50*F, but still felt really nice. It felt faster and I was a bit of an adrenaline rush. I have recently changed from heel striking to forefoot striking, so I am trying to ease into it so my calves and hamstrings can adjust, they are sore.
I know barefoot is not really in the 4HB at all but I do credit Tim with how I learned about the subject. I saw a video of him a couple years ago wearing the VFF (Vibram FiveFingers) and did some research to figure out what the heck they were. Since that point I always wanted to try running barefoot but never really was into running.
Since reading the 4HB I did some research on running (before I read the chapters on running) and found out about Chi Running and Pose Running (which is is the 4HB). I also tried to find out the difference between running form for distance running VS sprinting. I found and awesome video of Usain Bolt in slow mo here http://www.youtube.com/watch?v=MC_t8MfGHMQ and another video of Haille Gebrselassie here http://www.youtube.com/watch?v=EAW87NsiGuI
This video of Hallie led to a discussion with my ART Chiro about orthodics and overpronation, he is still a believer in orthodics and runs with a padded heel and an orthodic, but agrees that you should fore foot strike? Seems contradictory to me but I could never get him to agree, I am not good at debating.
I have ordered my VFF Bikilas and they will be ready for me to pickup next week. One I have them I am hoping to video myself running on a treadmill with my old shoes and orthodics vs the Bikilas (or barefoot). I will post that here.
My recommendations, find a grass field to run on that is safe (my wife is very concerned about running barefoot until I convinced her it was the a safe as running at a beach), and easy into it. I found a site that is anti barefoot running here http://www.runningbarefootisbad.com/ which is a good prespective to see. They claim there are more stress fracture injuries because of barefoot running, so it is good to be aware of that issue. But I doubt the guy on that site has ever tried it.