I've had the FHF, Marsupial, and now the AGC Classic. I liked the FHF, the rangefinder pouch sat nicely against the bino harness, but wanted a top that folded down, not up, enter the Marsupial. I really liked the top down opening, low profile, but I hated how far away the rangefinder pouch would sit. The loop system could be improved, and the buckles should be less bulky (you can fix this on your own), then I added a gun-bearer to my pack and the rangefinder pouch with the gun under your arm was bulky, uncomfortable and inconvenient, enter the AGC. I compromised with the bottom up opening so I could have the integrated range finder pouch - I like it so much. It may be higher profile, but the bulk across my midsection is now centralized, and the shoulder straps are much more comfortable than the marsupial.