Hogs aren't the fastest animals, I mean it varies a bit with the smaller ones being faster than the bigger ones, but I'm sure your dogs could run most down (tail or no tail), but do you know for sure they're used to do that? They're not just catch dogs? Either released on bayed game, or running free but typically following faster finders? They could easily be finder/lugger alrounders IMO, have seen less racey bandogs and bulldogs do it, but yeah just curious if they are. The reason really fast dogs are favoured here is because they're expected to catch multiple pigs out of a herd. Or "run on" after a pig has been killed and go catch another one, this is where a slower dog won't cut it, and by slower dog I mean pretty much anything without sighthound in it. Anyway I think tails are valuable for coursing, and realistically boars aren't "coursed" by dogs, they run when they hear dogs coming but stop to fight before an actual course can develop (course being a sight-based chase where the chaser is actually on the tail of the chasee, zigging and zagging after it). With small fast juveniles being an exception, both in the fact they're fast and evasive enough to "compete" in a course, and in the fact that flight always overrides fight for them. Basically yes, I don't think your dogs need tails for anything that they do.