On my first run out with the medium bindings I ran into a small issue.
Now I am centered, but the medium toe straps pinch my little toes in the boots(size 11 29cm). The medium toe straps just do not fit, to the point where it was painful to ride. Fortunately Burton have been really cool and I now have some extra L size toe caps.
Just be aware at size 11 with reduced footprint there are sizing issues. Either you get centered with mediums or the toe caps are too small.
Always check and try on thoroughly before you buy.
I am really liking the bindings though. Super playful with enough response to do some serious riding.