Mags, they don't make them for DuraAce. I bought a set of the Specialized ones home to try, but I never used them. You could probably make them work, but it won't have a clean finished look.
I just got different bars, with a very short reach (Bontrager Race X Lite), and that helps somewhat. I still need to find a way to get the levers closer when I'm in the drops, though. I may just end up with something homemade.