I see the MDP as a good fit for me. I can be a little rough on hp's and the MD seems to be about as rugged as they come. They'll also save a little weight over the AD plus I'll be able to use a lightweight custom cable with them to save even a little more weight. The only question is how they'll sound.
Postman should be here in about an hour.
Nice. You seem to be up to date with all the latest releases ;) Looking forward to reading your impressions.