I am doing my first of these runs next week.
https://goo.gl/flights/AwOC
Since I am ex-MIA, I worked in an overnight at home, before I finish doing the "Circle America" tour the following day. I have never been to Panama, so I am going to stay for a few days, to see the canal and actually visit. While I am doing a number of these runs, I always try to take advantage of visiting where I'm going.
I have another one of these at the beginning of November, timed to another already planned trip to LA, so no real positioning cost to factor in. My final jaunt to hit EXP will be to China and/or Hong Kong. That one will be more of an actual vacation as opposed to a pure MR. AA has had some amazingly reasonable fare sales of one kind or another on a regular basis, and I am very flexible time-wise. We'll see.
