I am also looking at the Dakine Low Roller for my board setup but I have the same width dilemma. I just got a Burton Clash 155 and Burton Mission bindings size L and I measured the missions on the clash at 13,7 inches wide with about an inch showing outside the board waist. The bag measures at 12 inches wide and I am not sure whether this 1,7 inch would be a problem.
have anyone tried it, will the highbacks of the bindings get damaged or is there another similarly spec-ed bag for wider setups?
Anyone with Burton Missions using the Low Roller btw?