Nitro Team Size 8, this is only happening with the Flows, I think because I had the toe strap too tight and so the boot can't slide forward anymore... so when the highback flips up, it pushes in the back of the boot (shoving my foot forward).
Something odd there. I am not liking that it sounds like there is room for forward movement inside the boot.
Please measure your foot using this method:
Kick your heel (barefoot please, no socks) back against a wall. Mark the floor exactly at the tip of your toe (the one that sticks out furthest - which toe this is will vary by rider). Measure from the mark on the floor to the wall. That is your foot length and is the only measurement that you will want to use. Measure in centimeters if possible, but if not, take inches and multiply by 2.54 (example: an 11.25 inch foot x 2.54 = 28.57 centimeters).