I'm onto my 3rd consecutive print, and getting better with each adjustment.

191 degrees nozzle
75 bed
70 flow
100% fan

That's a huge difference from factory settings where a full year of printing happened without issue.

I'm not sure what the root cause is/was, but I suspect more than one problem contributed to this madness.

I'll keep a close watch on the PLA manufacturer and quality going forward.

More updates when I can figure out why the little blobs are still happening!