That's interesting. I didn't keep precise track, but my estimate of my own "down time" was about an hour and a half. And I'd concluded that I proabably should have spent more time on breaks (and at earlier parts of the hike). So I wonder if I'd spent, say, the time you did on breaks -- would my overall trip time have been longer or about the same (with the theory that more and better timed breaks would have had me more energized for my hiking time, and shortening it)?
Not necessarily a question with a good answer, just interesting to speculate.