Does anyone have any experience with the new Exo K2 frame and belt compared to the Kifaru UL? I have seen on the forums that Kifaru fans say that the old Exo belt/shoulder straps weren't as comfortable as Kifaru. Exo made the lumbar pad and hip belt/shoulder straps beefier this year, and I was wondering how it compared to the Kifaru now? I'm still on the fence between Kifaru, Exo Mountain, or putting an Exo bag on a Kifaru frame. I'm trying to get as close as possible to the perfect bag: Exo bag with a guide lid, the Exo frame, and the Kifaru belt and straps!!!