With about two meters of black PLA left on the spool, a pair of spare joiner links and a few tchotckes seemed in order:
The underside of the samples shows the bridges between the pillars and the cap layer between the sides:
The bridge strands start out droopy, then pull into a more-or-less straight thread as the plastic cools and shrinks. The next layer up looks much, much better.
I can spend a long time watching the nozzle stretch threads across the chasms, putting me in a definite Channel Zero state of mind…