Just got my 4 LL packs down from the attic for a weekend trip (Me, youngest son home from college, wife and university Korean host-daughter) The pack cylinders are a different kind of suspension in that the velcro attachments are to the vertical columns of the LL pack frame and only need to be strong enough to keep them from rolling off the frame (or getting squshed off by cylinders above). Actual weight is transferred vertically from one cylinder to another down to the bottom shelf.

Hope this helps. . . .
Human Resources Memo: Floggings will continue until morale improves.