so seeing the aarn theories, I have a thought that adding some pockets up front might be nice, and have the ability to do so to my bag. but I have some questions:
1. having a gut or having boobs are often cited as reasons for back pain, so wouldnt adding weight up front be bad?
2. wouldnt weight be handled best closer to the spine to reduce torsion loads? they completely miss this fact in their force diagrams, somehow the loads on the regular bags show as torsion loading, but that is all gone with theirs..... when in reality if you loaded the front pockets, they are typically more than 12" FURTHER away from the spine, which would cause HIGHER torsional loading... need explaination on that one.