Another thing that plays a big role in todays dogs is technology. The old timers didn't have the luxury of garmins, quick tracks etc. I don't think the dogs are better but back then u just had to listen instead of looking on gps and going straight to em. And the hogs have adapted to everyone style of hunting. Jmo
But if u had gps shouldnt the dogs be better due to more hogs caught total vs losing the dogs out of hearing and going home with no hogs where if they roll out you keep going and going to them until u tire out killing hogs or they do?? Hard to figure to me for sure.