I'd like to add cyclocross brake levers ( I have a set of tektro 2.0 levers ready to go on ) in addition to aero brake levers on my new LHT build. I don't yet have my new frame, but as I play with these levers, I can't visualize how they function or exactly how they are installed. They don't seem to grip the brake cable but they must push the housing to activate the brakes. I also have cantilever brakes ready to install when the frame arrives. Anybody have experience with these and their installation?