After the new flooring was installed in the main level of the Verona house, I learned some lessons about how far you should allow uninterrupted runs of click flooring to go without transitions, as well as the importance of meticulous subfloor prep before the flooring goes in. A couple of small mistakes led to some small gaps forming in the floor, and the only real way to resolve it was to take a lot of the flooring out and put it back in, after resolving the underlying issues and adding transition strips.
The reinstalled flooring looks awesome, and there are no gapping issues anymore! Lesson learned, and fortunately it was an easy repair.