I do not like Flow, but if you're stuck on rear-entry bindings, just go them. Personally I just don't get the point of combining a traditional 2 strap system with the rear-entry like they do with Bent Metal, Roxy, and K2 bindings. Extra weight, more slop, having to re-position the ankle/toe strap each time you put it on...kind of reduces the possible benefits of rear-entry.
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