I have been trying to slowly increase my barefoot/minimalist running.  I would love to just go BF, but it is kind of cold right now in Massachusetts.  When I can, I do - like at lunch time when the sun is shining, the sun usually keeps the pavement at a decent temp for BF running.  But in the morning, the ground is pretty freaking cold.

so, the other day I donned my VFF KSOs for a half mile run and I noticed that the main part of the ball of my foot (right below the big toe) hurt when I ran with the KSOs on.  After a 1/4 mile I turned around and took them off and ran back and the pain wasnt nearly as severe when I was BF - though the cold ground got to me by the end of the 1/4 mile.  I wrote it off as a bruise or something that I didnt know about.

But then today again I put them on for a 3/4 mile run and had the same pain in the same place.  Is there a thicker section of rubber on that part of the foot or something that is hitting my foot.  I dont know.

HAs anyone else ever had this issue with the KSOs or any other Vibrams?

Thanks in advance

Jeff