@Trew

If you have a Garmin GPS you can load almost unlimited numbers of Waypoints if you convert them to POI's using Garmin's free POI loader software. Download it here: http://www.garmin.com/us/maps/poiloader
Or you can just get Guthooks and carry some means of keeping your phone charged.

I finished a thru hike of the AZT on 11/1. I used Hoka trail runners the entire time. No ankle or other foot issues, but I had to stop a bunch of times to clean grass seeds out of the shoes. The seeds will go through the mesh portions of the shoes and are extremely annoying. A shoe with a GoreTex or...