Far left: Matt Cross mini #99. Soooooooooo choice. It has seen many shred sessions. I think I got this bag at last year's Cornell Jam.
Back left: Peng bag. It played pretty well year round, but the steel filler inside rusted over the summer and I switched that filler component with lead instead. It plays so well, but it's a bit too floppy for my tastes.
Center: My main shred bag. It has gotten pretty floppy, but still has enough give to keep its shape intact.
Back right: Funk bag. Got this at last year's Worlds, and was my main shred bag for some time. It always got really dirty on concrete, though, which made me transition into another bag.
Far right: Footfighter mini. Not exactly choice yet, but I hand-knead this bag like crazy. Really floppy for a mini. Used only for carpet or indoor shred.