Take it slow. I told my CSM to break into it slowly and he assumed he knew better than me. Until 2 days after his 5 mile in his new VFF's. He went to get out of bed and fell over in agony when his calves cramped. I loved saying, "I told you so".
RaeVynn, good advice except for the springing off. I've done a lot of barefoot running and you learn very quickly if you "spring off" or push off with your toes you lose skin. The ball of the foot should land on the ground and the rest of the foot should settle down. You then PICK the foot up with your thighs and set it back down. Pick it up, set it down. That mantra used to roll along in my head over and over when I was running barefoot.