I have Bowhunted free range & High fence. Both several times.
I have had my best success with free range beleive it or not. High Fence i've been to (1000 to 4000 acres) you never saw a hog until dark. 7 trips High fence & I killed 1 hog just as it was turning daylight. Driving into camp at night you would see them running everywhere. I've killed 16 hogs total on other places & 1 with Hounds.