I recently acquired an absolute strap. I was skeptical if it could really be that good. I used it and a simple strap on a heavy yeoman. I walked around briefly and the difference is significant. I am now a believer.
I searched the forum and did not find anywhere this question has been asked: Why aren't absolute straps made for backpack straps?
The absolute strap is unique and the gold standard. All the new synik and luminary straps are better, but still various versions of foam wrapped by fabric. Why not skip to the best design?