If you're re-rigging your road bike shift cables and will have nothing less that Shimano's Dura-Ace level cables and housing, go with the Shimano SUS Road Shift Cable Set. It features SP41 housing, Shimano's stiffest and most responsive, and stainless cables which are highly stretch resistant and will last season over season. Treat your drivetrain right with some awesome cables.
SP41 housing is Shimano's stiffest and most efficient
Stainless steel cables are stretch and wear resistant