We did the full AZT in 2014. We started at the northern trailhead and have reached the GC north rim after two days.
The next day we crossed the GC carrying all our stuff in one day. This took us 11.5 hours!
Pictures of that day:
Click to "Arizona Trail Tag 2" under the following link:
http://mat-sa.ch/AZT/?page_id=11Here are my two cents about crossing the GC when walking under its own power:
Would I do it again? Absolutely!
How though is it? It's a log and exhausting walk. Walking down and along the flat section coming from the north rim was harder for me than climbing back uphill.
I strongly recommend you to use a real large trekking backpack with a good waist belt and stable back support. Also a pair of running shoes. And not to forget trekking poles.
Also I recommend you to pack precisely and carefully. Otherwise you will suffer in the coming hours...
After crossing the GC you can leave the running shoes, the poles and the backpack at the south rim or send it back home.
I started the AZT with a very old backpack (smaller backpack inside), trekking poles and running shoes and threw all to trash after reaching the south rim.
Regarding environmental protection not the best solution I know but because we are from Switzerland we had no chance to send the stuff back home without much higher cost.
There is a ranger program where you can bring unused stuff at the south rim but we arrived late in the day and left early in the mornig. The ranger station was closed.
You can continue with a smaller backpack from there...
Hope this helps...