Have a Tsunami Mountain Tandem that we built up from a Cannondale. Has BB7 disk brakes and the whole kit and caboodle. I want to put on drops and campy ergo levers for more hand positions for longer rides. Drivetrain is a Shimano XT 9 speed. I know there is a trick or a shiftmate to sort out the shifting. Only question now is going from flatbar to road brake leves is a differnt pull. Would a pair of travel agents or rollamajigs allow me to run road levers with mountain brake calipers?