Thanks all! Sounds like We're in for an enjoyable trip.
The itin says we stop somewhere on the way back for an hour. I assume that's for gas?
Yes. You will stop in Dublin for re-fuelling. The altitude of ADD proves to be a challenge, so the NA bound flights make a technical stop in Dublin. Usually around an hour. Cleaning crews will come through and make a sweep of the cabin and freshen up the lavs too.