Also on the internal bump stop/factory jounce bumper removal. I think a lot folks misunderstand the "5psi minimum" in the instructions. If you go a bit further it explains that unladen you can go 0psi, 5psi is the minimum loaded pressure. 5psi in these raised the back of my truck 1", would surely ride stiffer as a result.
(EDIT)
Load Lifter 5000 Utlimates have an internal bump stop (like a timbren) these are just the standard 5000's so assuming should ride like nothings there when no psi in bags.