I went for my first run in the Access Arc's yesterday:
1.5 miles on the track.

It definitely felt different, I could feel much more of the surface. It felt like I was landing mid- or flat-foot (not on my heal at all). It got me thinking about running form. I need to pull out my copy of Chi Running and read up on it.

I had no problems during or after the run. Looking forward to trying the Lithe Glove's out on the trail this week!