sounds like your dogs need more time out in the field, more training. we have 3 beagles and run them all year. the more they run the better they get. ours sound out everytime they get a nose full of freah rabbit. ours usually will not bark on a track more than 10 or 15 minutes old. but watch their tail you can tell when they are on an older track and getting some scent. let them go and it will not belong before they are on a hot one. we hunt them all season then just train the rest of the year. depends on where you hunt but some will run out of hearing range before they turn. ussually around builtings and houses they make a short loop. but if you get on a what we call a woods rabbit it will be a long wait. these are not jacks but just big old woods rabbits. if you get on a jacks trail you may not hear your dog for a half an hour. a couple of times out a week and you will have some good dogs. almost forgot ,put a small bell on them helps alot when they are not barking we use the ones you can buy for your fishing pole they have a tone that is easy to hear. we have been training dogs for years and can probably help you with most problems you will have. we supply the rabbits for most of the game dinners around here. remember you want to be your dogs friend not just his trainer.