Aron and I talked a lot before I ordered mine. It should be shipping tuesday. I got the T2 with XTL lid, grabit, lash kit, two small hip belt pouches, chamber pouch, 4 UL pullouts and a back pouch. My thought process is I have 6000 Cu inches with the pack and two belt pouches. The back pouch was just for an extra volume just in case. My dad's pack is 3500 and it has molle so he could use it if need be. I also don't have super UL gear so I wanted to be able to put more gear on the outside if I am hauling meat. But we will see when I play with it. Good luck on your decision. I'll post pics at end of week hopefully.