I have completed two runs in my brand spanking new Vibram KSOs, and I LOVE ‘em! I didn’t think they would be too much of a shock after wearing the Pace Gloves, which have essentially 4mm of sole as opposed to 2mm for the KSOs.
Probably the biggest difference (other than the toe pockets) is that the KSOs have no arch support at all (the Pace Gloves do have a bit). I thought I might feel a difference due to the lack of any arch support, but my arches are not complaining at all.
It sounds really cheesy to say, but it does feel very liberating to run in the Vibrams. You feel light on your feet (probably because you have a lot less shoe weighing you down! ) and you see what it feels like to land on the forefoot instead of heel striking.
I did 3 miles Tuesday and 3.5 miles yesterday, and I have zero calf or arch soreness. The only thing I did get was some friction on the bottom of my big toes, which I think is due to not wearing socks (or possibly to pushing off instead of lifting my feet), because I got it initially when wearing the Pace Gloves regularly. Yesterday, I just slapped a band aid on the bottom of each big toe and I was fine.
I am going to continue along with the lower mileage in the Merrells and the Vibrams and see how it feels over the next few weeks. I am only increasing mileage 10% (practicing what I preach for once)!
Who else runs in Vibrams? Have you had any issues with friction blisters on the bottom of the big toe?