Oldest yella dog I have is 2 so I really don't have veteran dogs of my own but make sure to bring pups if I have a buddy bring an older dog for them to run with.
Tex just turned two an has been doing a lot better this past 6 months. Started ranging out and is always caught on no matter what size hog. Sugar is 6 months and has more hunt then any dog in the yard, prey drive is out of control ha. Gunna start the trash breaking when she turns a year, right now just make sure I turn her out when I think she will pick up on hogs and not see a rabbit,deer. She learns fast so shouldn't be hard to trash break if I even have to.
