Option 1: GLR conflict. I'm not sure that matters but I know Kurt and I are planning some revenge there.
Option 2: I'm pretty sure you'd conflict with DH's planned TU move to mid June for before, after might be a good spot for me on the calendar. I know it's one I've been wanting to do.
Option 3: Should be able to find a workable weekend there as well. Coconino will probably draw some of the same people so they probably shouldn't overlap
Just a few thoughts, feel free to disregard as my lame ass hasn't made it down there yet