Dirtybrian you are a moron, nearly eery post  have seen you make has been nothing more than an ego expansion on yourself, when really you have nothing enlightening to say. The only further step you can take is throwing the word proform around, then you've crested yourself the ultimate in egotistical status.
To answer the actual question, race skis mount on the line, not because its where the "design" meshes perfectly with boot/binding/ski, but because of sidecut fis regulations ect.