,What size field pocket do you have installed in your Ruck's inside MOLLE—and why?; also, which bag and size do you think goes with each field pocket—and why? I have a GR1,GR2 Field Pocket - Ripstop ROBIC® – GORUCK,GR2 Field Pocket - Ripstop ROBIC® – GORUCK,GR2 Field Pocket - Ripstop ROBIC® – GORUCK