Ive seen this to,in open farm fields,open mouth dog running a hog,every so often hog would stop and listen,and take off 2 r 3 hundred yards stop and do it again,same place silent mouth dogs running hog he stops and listen dont hear nothing kinda stays in fast walk ,dogs catch up to him,bayed hog.i dont wont a race i wont a bay.
Get faster open mouthed dogs