man imo any one can make a "hog dog" a jam up go yonder dog is very hard to find when i hear jam up i think off a dog you turn loose in the woods on no hog sign turn around sit on your tail gate and wait you wont be able to hear em when they bay so youd better have a garmin and wildlife or quick track on em. i do not own a dog like this and i might not ever but i have seen two that a guy run together they were all he used sold em as a pair for 5000 its a totally differet style of huntin
when you find the right line of dogs that are linebred and inbred then you can have these hunting traits consistently...
but some of the style/range has to do with the dog handling...if you hunt fast and don't wait on the dogs these same dogs will look for hotter tracks and will not range out too far...but once they get on one they should stick...
The same dogs with a slow moving handler that keeps an eye on all the dogs moves and waits on the dogs when they want to work a track can have dogs of the same type you are talking about...These dogs will range out and when they are satisfied there are no hogs in the area they will check in...then if you don't move on they will range further out on the next round...these same dogs will learn to take a colder track because they know you are hunting with them...