My truck is lifted so the factory overloads never worked. I took them off and did my best to keep the articulation with the airbags. I wound up losing up-travel but I kept all my droop. Not perfect, but it works for today.
One thing about the above pic. On my truck the springs flex enough that I have difficulty keeping the bolts that hold the bottom bracket tight. On a recent trip the bolts came loose and the bracket slid around a little. With the bolts running from the bottom pack up to the mount, above the overload, there's a lot of room for flex and loose bolts there.
Not a problem if you don't wheel it, but on a rig that flexes, it could pose an issue.