I imagine most of you knew these but I never did. First, I never realized that you didn't have to keep the Wind Master in your party after he or she cast fly. With Dragonsand in particular that brings up a couple of different possibilities. One is to hire the one in the resort, cast fly and then dismiss her and hire her back. That gives you up to four hours of fly time. That's what I've been doing mostly and I keep the Instructor who is available in the resort as the other NPC until I need to heal up. Then I exchange him for the Gatemaster, gate back to New Sorpigal, heal up (or stay at the tavern if it's later), and use the portal to hop back into Dragonsand, fly back to the resort and exchange the gatemaster for the Instructor again. There's also a way to do all your fighting with both an Instructor and Teacher in your party by always keeping the Teacher and swapping out the other NPC's as needed. The other thing I never knew was about Dragons. If you can isolate one away from the pack and then maneuver really close and position yourself below him so that his legs are just visible, you can whack on him in turn based mode at no risk. He can't hit you and he won't move until he's low health and flees. It's time consuming and usually takes some reloading, but I'm close to clearing out the whole zone using that method. And I think it will respawn about the time I'm done.
This is going to take me a long time but I'm going to keep plugging away at it.
