Sorry i misread the starting post ...
Yes i can only agree then that if you are able to work on cutting back the number of DS pro litter that would be great - I dunno what other breeders do but i plan to fit in a pasus in my sales contract on eventual DS Ridgeless pups, that they should be neutered/speyed before they get 1 year old - to avoid .. Ooops litters with DS parents.
Regarding the extremely well developed dog language (Is that the right word??) I do not believe we should try to work on killing that in breeding, i also think thats one of their finest assets - Im merely stating that it may be the reason for their aggression towards other dogs..
ITT