So I went to try the OP's AOE spot. First off, I had to make a bit of a guess as the first two images appear to be missing now. From what I researched, it appears this is Verlok Stand, although I did not see any of the mushroom tenders here, so I might be in the wrong spot. The pillartumblers do spawn rapidly here, however, I didn't seem to be able to loot them. Thoughts?