We have a 2004 Cannondale tandem with Avid BB7 mechanical disc brakes. The levers are Ultegra 6510 STI. Brakes have new pads, and the rotors, though not dead perfect, are quite true. Just a sliver of light showing around pads. Nonetheless, I have to pull the lever nearly to the bar to fully engage the brakes.
I have thought about adding travel agents, but they seem to be discontinued and unavailable.
I am not wild about the Ultegra levers anyway and have thought about changing to bar end shifters, in which case I have some 105 aero levers to use. I am wondering if they would have better cable pull than the STI levers - or are all Shimano levers about the same?
Other ideas? I would prefer to keep the Avids if possible.