I'm about your size and I roll on the 6800s. They're stiff, quick, and light (1640g). I chose them over Dura-Ace because they can be set up tubeless, and because they can be had for so cheap (got them for $330 shipped from probikekit). I really like them, and I don't really think the minor weight-savings is worth the extra hundreds to go DA. Satisfied customer here.