Originally Posted by
HillRider
2. I realize the new Ultegra and Dura Ace brakes have a somewhat different cable pull requirement but is the difference significant? I've read from actual users that matching 6700 STI levers with older brake calipers makes no significant difference in feel or power.
They're wrong.
It's the same as if you mistmatched v-brakes and canti levers on their respective mismatched systems. Since the OP is planning on purchasing there really is no reason to buy into a problem that he doesn't need to.