Why not open mouthed?

I have never hunted with open hounds other than a Jagd terrier !!! He could sometimes get it done but what usually happened was the hogs would hear him coming and run like hell. I personally saw hogs run ahead of him after they heard him bark. From talking to people the only way you can catch a hog with open hounds is if the hogs stops. I guess maybe some really fast hounds that can close the distance and/or run him till he is tired. I have heard too many stories of hound hunters having races that last for hours and hours. One guy told me his dogs would run one off of a 25000 acre plantation. On small porperties that ain't good. I personally don't have thousands of acres to mess with a hound. Big properties I guess they are fine. Small properties no.

QUIET DOGS = SHORTER HUNTS ?
OPEN DOGS = LONGER HUNTS ?