I crossed my patterdale dog with a Lakeland bitch then years after I bred my patterdale dog to his daughter from the litter pups were very good strong good heads and more bone from the patterdale dog this his what I wanted.there was one bitch pup out of six pups with under shot jaw.not now but later on there's a dog pup from the first cross matting made a real good dog work wise.could I put him over a bitch from the father to daughter matting of would that be to close.