While we're thinkng out loud, if you were to switch to a dual master cylinder do you have to consider the bore and stroke of each wheel cylinder a chamber supplies? Or, do you just take the bore and stroke of the orginal MC and divide it in half. I would think that newer dual chamber systems have a different volume for the front and the rear chamber, and those would need to be close to the volumes of the wheel cylinders. Then again a proportioning valve may take care of that. Any thoughts?