Why not open mouthed?

I have both open an silent dogs i have taken my silent dogs out and they ran a hog a mile and caught it an the next time i went hunting i took some of my open dogs and caught one 20 yards from the truck on the same ranch that i have been doggin for 18 to 19 years and my dogs can runwith the best of them. My point is i think it all depends on the hog alot of the hogs in my area travel quite a ways and when you get on them they are goin back where they come from and they are not goin to stop till they get there dont matter if you have a dog chewing on there nuts are not. My hound crosses only barks if they are right on the hogs azz and running with there head up not with there head down trailing on the ground they are not barkin a mile behind them i do belief if a dog is blabling on trail barkin behind or barkin out of place or cold trailing a hog that been there 5 hours ago yea you are goin to hav a chase and a long night. JMO