I suppose it depends on how you define worker, one man might think his dogs the bees knees another man might think it's crap. Your man Hancock takes a lot of flak some might say deservedly but I've seen a lot of decent dogs out of his kennel, I've also seen a lot of mediocre dogs bred from two supposedly excellent workers. There are a lot more factors involved IE the owner, the ground, the amount the dog gets out, how its entered . One thing I have noticed over the years though its always the dog that's a duffer not the owner.