the pedal pressure is determined by the hydraulics, some like a firm pedal, some a soft
we changed up ours so that you can "feel" them more, taking in what our customers asked for
the specs the stage III is got an aggressive material and more clamping force, making it a bit "grabby"
the dual disc is an excellent set up, but only if you need the extra hp they can handle, for most a second stage works excellent.