Replying to Bending Bindings??

Okay guys, this is my question about bending bindings, how much is the most you can bend a brake?(without loosing the perfomance of the binding).
I read a question in backcountry.com about the Marker Jester Schizo brakes, and some backountry employee said that the most you can bend a brake is 5 - 8 mm  no further than that.
And my other question, Im thinking about buying the fks 14, with 115mm brakes, but I want them for an Amplid Choleterone RC ski , the waist  is 128 mmm, so you think its possible to bend the brake from 115 to 128 mm without loosing the perfomance of the fks???.
Well no more to say, thanks, and sorry for my bad english.