Correct me if I'm wrong, but hasn't it been said on the forum that fatheads like to spawn on the underside of something flat?

bobad, it sounds like you are making a cavity for them to spawn in, as opposed to a flat plane.

Excerpt from Robert Crais' "The Monkey's Raincoat:"
"She took another microscopic bite of her sandwich, then pushed it away. Maybe she absorbed nutrients from her surroundings."