There's a range of real leverages (cable pull ratios) with single pivot calipers and cantis but they are generally lumped together and considered a single family of cable/pad movement ratio. And with cantis some amount of adjustment for cable pull is possible with varying the straddle cable length. Mixing lever and caliper/canti leverages won't make the brakes not work, just not at the leverage that the company intended. As with any new combo that you haven't tried before don't install grips or tape before confirming that the new combo works for you. Andy