I'm thinking the same thing... the pedal normally applies pressure to the bar via the spherical bearing mounted inside a tube - this allows two things, lets the pivot point move along the bar as the bearing position is adjusted ( to give bias shift) along the bar, and allows the bar to pivot to allow different piston travel on the two master cylinders (the travel of each cylinder is very likely to be different, so you need to accomodate some angular movement of the bar to allow this)

From my own experience it seems to me that the bar is much too far from the pedal pivot, and you will lose a lot of mechanical advantage (pedal-to-cylinder pressure ratio) and hence effective master cylinder pressure. You will need to apply a LOT of pedal pressure with it mounted where it is, especially if you have no servo's.