garmin solved the problem .... now days you can teach a dog to come when toned so you can control where or how far they run ..... when a bay busts sometimes our bulldogs run for a mile or two so just cause you get ruffer dogs don't mean you want get off the property you have to hunt ....the right garmin set up may be good for you for whatever you hunt for staying where you need to stay ....
Reason your bulldogs are running pigs so far is there lack of speed not hardness. Speed alone doesn't stop races nor does hardness by itself. You must combine the two. Deerhound x dogo type dog.
Take a fast pig to the middle of any size feild then turn it loose. Wait till the pig books it half way across the feild before turning 1 "fast" catch dog to run it down and catch. If the pig cleared the feild where was the failure? Speed or hardness? Most likely lack of speed. If the dog did overtake the pig but didn't catch it then it's lack of hardness that allowed the pig to clear the feild. This dog to me is not much of a catch dog since it requires a second dog to get there and assist. I