Tom thru-hiked the GET a while back, and like me, isn’t exactly a spring chicken, I don’t think. I thru-hiked the AZT in 2004, and while this trail has come a long way since then, both in terms of trail corridor completion and ease of navigation, it is still more the slightly milder stepchild of the GET than anything familial to the PCT, with a real hodgepodge of conditions, gradients, and degrees of (in)civility. You can expect somewhat higher daily mileages on the AZT than the GET, but certainly nothing like on the PCT, at least on average.
Typically you won’t want to start the AZT before the 1st or 2nd week of March, due to snowpack in the Sky Islands, and a schedule that would put you potentially in deep snow above the Mogollon Rim. In a high snow year you may be delayed such that completing the AZT in time to tackle the PCT would be a prohibitive challenge.
Forty to fifty days would be a reasonable timetable for completing an AZT thru-hike - on par with the GET. And while this may offer a manageable window given your planned back-to-back thru-hikes, ask yourself whether you’d have been eager to begin a PCT thru-hike immediately upon completion of the GET. The AZT ain’t no warm-up hike; it’s a full on commitment, and you may well feel “done” when you’re done. Same for the PCT. So perhaps the most important question to ask is which hike seems most important, if you had to choose. If it’s the AZT, then keep planning accordingly. Otherwise, consider a warm-up program that’s less a liability to the successful completion of the PCT.
And Tom, when you’re done, and have completed the AZT or PCT as well as the GET, feel free to share any insights over on the GET forum. We don’t hear from many hikers who’ve gone the distance, and people are getting tired of my stale old perspectives. ;0)
blisterfree