these bindings are a piece of trash. i bought the M11 binding and rode it just 6 times this season before the plastic highback cracked on me.
i didn't hit any trees. i didn't crash.
all i know is when i got back to my house, the highback was cracked. they are cheaply made. i would NEVER recommend this binding to any rider.
i can't imagine this binding being any different structurally from the M11. stay away. cheap, plastic crap!
the only good thing i CAN say about them is that Flow was kind enough to overnight me a replacement highback asap.