In New Zealand we hunt them by this method on a regular basis. Will probably be out there this week trying to top up the freezer. Good dogs to find, bail and hold, are essential. In some instances we dispatch with a rifle.
The biggest Boars are not necessarily the most difficult to tackle. Often the smaller more mobile boars with the short sharp tusks do the most damage.
It's an exciting way to hunt, always a chance that you and you dogs may come off second best.