That was me with the sock advice.
And listen to the guys that say take it slowly...I went from 40+ miles heel-toe to attempting 40+ miles with VFF/forefoot. Changing your gait/running style is to be done slowly. You WILL get injuried...it might not happen right off the bat, but eventually something will give. Think of using VFF's as starting over from scratch running...you can't expect to run a 15 miler on the weekend when you're just starting out running. Gotta start off with very light runs of less than a mile and work your way up.
I'm back to heel-toe while training for OKC, but am going to start up again with the VFF's in the summer after. I will say, I tend to strike a bit more midfoot naturally now than I did before. Do NOT go gung-ho...from personal experience and as a coach. (Yes, I set a bad example)