I had a siwash and downsized to a spikecamp. the one I have is a G1 though so I am not sure if that would give you and idea of what the G2 series would be like plus it has alot of miles on it...I kinda wish I would have kept the siwash but it was too big for the kind of hunting I was doing and will be doing for the next bit and I found my self putting stuff in it just cause I had room. I have the pack shelf, gun bearer and a couple of pockets with mine. the customer service was great. I will most likely go to them when I am ready for another bigger pack. if you want a peep at it let me know and I will see what I can workout.