Definitely the Sm/Md size. That way you won't have a huge binding where your boot will slip around, with an added bonus of being a bit lighter.
17 Jones Storm Chaser . 17 Never Summer Proto Type Two . 16 Never Summer Swift . 16 Rome Pow Division ST x Snurfer . 16 Gnu Swallow Tail Carver . 15 NS Snowtrooper BIA . 15 Jones Hovercraft
17 Burton Malavita Wing . 16 Burton Genesis X
16 Flow Talon . 16 Flow Hylite