I don't have a "long" history with feral hogs. I hunted and trapped feral hogs from 2005 until about 2015.
About the only "consistent" things I've noticed about feral hogs is that they are "IN-consistent"!
See a sounder out in daylight and shoot them up, they go nocturnal. Pressure them further and the whole group will move out!
...but nature hates a vacuum. Be patient, another sounder will move in! SOON!
Another feral hog consistency! They can destroy way more in one night than any normal person can conceive!