A lot of the trail was rocky scree type of terrain. Mostly rocks and difficult to find a spot of plain dirt on each step. Rocks about 3" – 6" in size. This is the PCT Section from the Cedar Spring cut-off to Fobes Saddle. The Jo Pond Trail Section has about 7 miles of volvanic rock. Miles of nothing but rocks, and little dirt at all. Not your typical well worn Sierra trail.
Craig told me that his MT100s have about 250 miles of trail running on them. I was surprised, as they looked to be in great condition. So, they are durable, but as Eugene mentioned, you will probably be buying many pairs to do a thru hike.
They are fairly inexpensive, so you might want to buy a pair and try them out. Everyone is going to be different.
As an interesting side note, I had been running a little bit in my Shays the past couple of months, just to make sure they would fit right. I really give no thought on my foot strike at all. But, I tend to be a light walker. Craig followed my most of the first 11 miles, and commented that I did the entire section walking on the balls of my feet. That comment really surprised me.







