Originally Posted by
ldsailor
Just a heads up. I had a problem with my Arc Haul. When I put the arc in, the metal rods bent sideways. The result was the pack was right up against my back with no arc for airflow. I thought I had done something wrong, but when I emailed Zpack about it, they had me send the pack back to them. They did something to it, and then returned the pack. Now it works great. A few other hikers told me they had the same problem. You probably won't experience this issue, but if you do, email Zpack and tell them.
I found if I arc my pack before packing my gear into it, I have a heck of a time getting stuff into the pack. This is undoubtedly a result of having too much in the pack. It happens right after I get new provisions. You might want to watch out for that if you have a lot of stuff in the backpack.