I have never heard of such a method. Why not just run curs? They live to hunt, will sniff out a hog with no problem, and have way more stamina than pitbulls. Not to mention the chaos that must ensue while trying to use two separate groups of dogs, for two separate jobs on the same hunt.
Seriously jump on youtube and search for "wild pig hunting nz" .
Basic setup (I think, I'm no expert nor pig hunter) is the hunter has tracking/chasing dogs, bailing dogs (they corner the pig), and sometimes holding dogs (they will hold the pig by the ears or leg). The dogs are often fitted with gps trackers and they roam over a wide area looking for the pig scent or sign. Some of the dogs may wear protective collars to avoid getting fatal injuries from the pigs.
Quite often you'll see the pig hunters driving around with the dogs on the bonnet, or on a rear flat deck sniffing the air for a scent. If the dogs catch a scent they'll jump off, chase the back, and bail it up (corner it).
Pig dogs here are usually mongrel breeds, a real mix, and very aggressive.