I love Dual, one of my favorite summer scents, but it does stay fairly close to the skin. That's OK with me. On my skin it lasts quite well, up to 5-6 hours at times. Eua de Monsieur has been on my wish list for a while, and you've given me no reason to move it down in the list.
Have you tried Les Nuits d'Hadrien? Also very nice, adding a spiciness, body and richness to the original. And it lasts better than the original too.