DS has been walking for about 4 months now and we are moving from summer sandals (PediPed originals) and moccasins to some winter shoes. I've had him in really minimal shoes so far and am wondering if I should kick it up (pun intended) to real sneakers? See Kai Run? PediPed Grip n Go? Stride Rite? Something else? Or keep with the minimalist shoes?

Thanks!