I agree with Cajun...it is genetic
However, I have 4 pups out of a Pocahontas Plott gyp and the sire is an open 1/2 mt cur 1/4 redbone 1/4 pitbull dog...these 4 pups should be open on track but they have been running silent...the only thing I can figure is that the bark collars they have been wearing at the kennel has caused that so it is possible a dog can be trained to run silent...in the woods they will not have a bark collar but they will be wearing a quick trac and a Garmin collar...
I am thinking they would default back to open if I leave the bark collars off for a long while...
Reuben how are the pups doing I will add that the plot gyp generally opens 4 or 5 times then falls silent till bayed
