i have got the planet bag and it is mint it has 3 compartments for 3 guns and pockets everywhere but i use that for tourneys because it is so big.
I also have a dye rucksack and it is pimp it carrys one gun and has pockets everywhere for the hopper and bottle its soooo comfey i use that for training its so easy.
I just got the new planet catalogue and they've got some back pack kit bags that look pritty wicked, don't know when they're out but if you don't want something big then they might be good. if not then the empire kit bags are good.