Sorry, I misunderstood your original question. I thought you were concerned with the durability of the Eberlestock carrying that amount of weight.
In my mind, 150 pound loads over 10 miles on my back, and the word "comfortable" are not compatible!
At my age, I'm past even contemplating that and it's pretty doubtful I would have contemplated that in my younger days!
I packed a whitetail a little over a mile just last week over rugged terrain and it was tough. My pack weighed ONLY
66 pounds. 150 pounds? Forget it, that doesn't sound like fun.
You know, there is a reason humankind has bred horses, donkeys, mules, and llamas for thousands of years!
Anyway, can't help you much. Maybe someone will chime in.