I replied you are "missing a bunch" because I knew of others in this forum who were using modified ULA packs. I wanted to give them the option to speak for themselves, and they did. I did not want to step on anyone's toes, as some guys here make outdoor gear for part or all of their living, and if they want to describe their gear that is THEIR place to do so.

In so doing I guess my terse reply stepped on your toes. That was not my intent. I apologize.

You need to understand a little something about marketing to most folks who buy ULA type packs. Almost none of them would ever consider carrying over fifty pounds, EVER. If ULA said the max weight for the Epic was say, 60#, the gram-weenie section would mentally kick it to the curb. The pack was designed for Dial's Arctic 1000 Expedition, and they started pretty heavy, WAY over 40#. So, they know what it will do, especially with the stiffer stays.