I couldn't a layout for B3, always seemed to be lacking space for arms, it's probably a skill issue. And as I am not conditionally inclined, I instead just threw pistons into the free space, put on my pajamas, and went full B1-and-B2 on this B4. Wailing on the instruction tray, praying for something majestic to fall out. I was hoping for a Symphony by Beethoven, but unfortunately, I got a painting... by Stevie Wonder, at least at first.

On a more serious note, from the first iteration of this solution, I shaved 1/3rd off the period and about 4 arms. The first solution had a lot of intermingling hands touching ALL over the bonders in a rather vulgar fashion, and just like a trip to the tunnel of BEES, it was far too sticky and quite painful to work with. I didn't have to change much but I eventually -somehow- found space for all my arms to do their business. And like with most arms, it was usually in the corner, away from prying eyes. Eventually, the more secluded ones got the axe for the unspeakable things they were doing back there, and their workload was comfortably distributed among the proven few.

With a more elegant Reactive Water setup, I could see this solution dropping a little in secondary.

I'm very curious to witness if there's fractional-P wizardry coming up.

And as always, looking forward to the show.