Great blog post - thanks for sharing.
I've quite recently acquired an a 155 so your shuffle method is really interesting to me.
Though it's not shuffling, I've been experimenting with 'pseudo random' sequences using a155 with an a160, a161 and an a151. An a119 creates gates depending on threshold setting. If you're interested there's a Soundcloud track here also using an a112
https://soundcloud.com/neal-beard/spirochetes-must-die-part-2
Cheers,
Neal