So i had my first session in my new 306s this Wednesday, and they will be going on ebay. Gutted because the quality of the shoe is fantastic. Seriously impressed with New Balance. The sizing is just so off for my feet, which are quite flat and wide in the toe box. Pinky toes are happy, but my foot just slides from side to side inside the shoe. Its almost like my foot isn't of a sufficient girth to fill the shoe, and so the laces don't lock it down. Maybe a fatter toungue would have helped. I tried an extra insole, but then my heel started slipping. Will defo consider New Balance again though, just need to find the right vulc.