Anyone bred a litter for a pup studied the litter for 8 weeks or so then made a well thought choice, then passed the rest on, only to find your choice of pup was no where near as good as a sibling that you passed on.
What a pisser, but I guess it still proves your on the right track as far as your choice of sire and dam.
Can a really good strong bloodline miss a generation as far as producing exceptional litters ?