Cool. I'd be interested in seeing something done about locking the fasteners into place (lock-tite or something like that.)
I haven't owned a LL yet so I don't know about any problem with loose fasteners and LL but every other kayak I have owned has required me to undo all of the fasteners, apply lock-tite, and re-install. They all seem to come loose over time and wiggly safety bars make me nervous.
It takes me quite a while to lock-tite my boats myself and I'm cussing the whole time. I don't think a kayaker would ever want to undo any of their grab bars so using one of the strong flavors of lock-tite at the time of manufacture would be fine. Torque them down with a torque wrench with some lock-tite on them and they would never loosen up.