I was thinking about buying Concord 11 or Gammas, but I don't know what size to get. In Roshes I wear 9.5, and in 5s I wear 9 and in 3s I wear 9, what size should I get? I heard that Concords fit half a size small and Gammas fit true, but what do I go by Roshes or Jordans? Thanks for the help!