The Science of Stop

I often send my dogs to pigs feeding on the edge of feilds. With my style of dogs I can tweak my style a number of ways for this catch. Mostly I just send them from across the feild. That's 1 fence to cross, the length or width of the feild to cover, another fence to negotiate while I'm persuit, run the pig down in the brush often times having crossed a steep creek etc. Then hold till I arrive to take possession of the pig.
If the pigs are in the middle or on the side I'm on, I'll be tying pigs in the feild. If a dog can't run down a fast pig in the open, the dog has zero chance of running the same pig down in the brush and catching it all things being equal. If the dog is only slightly faster than pigs in the open and the race is stretched out do to the dogs lack of real speed, then the pig will be either caught much farther in the brush or won't be caught at all, unless the pig makes a mistake. We all know pigs like to turn and face the dogs once they get in the brush, these are not the pigs I'm speaking of. The pig that never checks up once it hits the brush is the ones I'm speaking of. Any cd can get a good chance at catching a pig if it checks up once it hits the brush. Many people don't have the ability to hunt their dogs in open stuff. Take the jungle and hills of where Hyan is from In Hawaii. They have developed dogs to run pigs down and catch them in the brush should the pig be able to flick the dog once found. These dogs (2) are holding for how long? A long time as opposed to what most of us are used to. They aren't gonna be doing this with 25 pound terriers most people here think it takes to get through thick brush.
The logic that goes along with the little dog theory that it takes to keep up with pigs in the brush and are doing what big dogs can't is one of the most flaud thought processes I've come across. Can they do it, yeah they do it all the time. Big dogs do too, big dogs of this caliber and kind are just foreign to most doggers of this forum. So is strickly hunting with catch dogs yet it's done by a growing number of people in the US and is the dominant style in Australia. Same stuff there as here. Brush, heat, blackberry thickets, hills, crop feilds etc. It's done the same there as it is here and they have dogs that do it all same as here. Wind, rig, cast, sight hunt, crop work, working blackberry thickets etc. Just a different style dog than what most are used to here on the forum but common In certain circles here or cultures or other countries.