That expression pedal must be awesome for you to dedicate so much space to it on a mini board. Love your choices though.
I pretty much have to have a volume pedal! For one, it takes the tuner out of my signal chain, and I can stick it between my drives and effects for more control.
I also suppose that I could raise the feet on the board and stick the power modules underneath. The GigRig stuff is awesome for that because everything is so lightweight.