With a little work a good dog can learn to hood or rig. To get started chain the dogs on the box or hood. Place a hog where you can come in to the wind and drive in that direction when they catch the smell you will see there posture change whether you are by the pig or not stop and drop one if he goes to it good if he comes back just do it again some will bark to get off some will have a little trade mark just read the dogs and go slow they will catch on
Judge has it right. The only thing that will keep a good hog dog from being a good hood dog is him not liking to ride on the hood. I used to ride my curs on the hood so I could watch them and see when they were getting piggy. Curs will rarely bark on the hood or on top of the box so the hood was better to watch their body language. I run all loud mouth, mouthy hounds now and they don't have to be on the hood, they'll let you know when they smell one. LOL If your dogs are hog dogs they'll let you know when they are smelling hogs you just might have to ride them on the hood and watch them. By the way you can pretty much tell the first time you put a dog on the hood if he's gonna ride it or not. If he get scared and lays down then he may never get used to being up there, some don't. Good luck