Here is a short video I shot of me running in various types of minimalist footwear and barefoot on rocks and cement shot in HD and slowed down.
http://www.youtube.com/watch?v=Bw1Unz7QWbM
My minimalist preference in order of most ground feel
1- VFF (they are very well broken in having ran in them for over a year)
2- Invisible Shoes 4mm (on the way to being my favorite, still new to me and needs to get broken in)
3- Invisible Shoes 6mm
4- Merrell Trail Gloves
I liked this video. The runner had great form and was very consistent, so it was clear that any differences in the stride were from the shoes. I thought the Merrell and FF's looked like the shoes altered the foot strike slightly. Although I did see the toe movement up just before impact with the FF's. The huarachis were the closest to barefoot. They both looked good.
jerry