I use it with...
I had to mdify the divider slightly, and put my main marker in the divider inside a gun bag, where the divider was designed to carry only the marker and not the barrell attached, under where the barrell reaches accross the divider is my spares kit (medium sized box type thing with lots of little square compartments).....
In the front pocket (or back whatever you want to call it) i have my large toolbox at the bottom with my goggs and pot swab on that.
Left of the divider i have my pack, 6 pots, knee pads, elbow pads, training jerseys, playhing jersey and gun stand, and on the right side i have my spare marker, hopper, air and a couple of beanies.. on the very top of the bag i have my ground pounder to protect anything falling on top of the main compartment.
Then i have the usual in the inside posckets (barrel sox, flufies and squeegies, spare barrell, spare lense and cleaning cloths.......
I usually take a change of clothes in a rucksack..