I know quite a few guys that are still using dogs that were based on Floyd's principles and I tell you right now you can't buy jack from them. I've known them personally for 8+years and can't buy a dog from them for no price. They just don't sell or breed more than what they need or they can feed. they also all are connected with each other, but guys i've known with the skull stuff that were serious have really moved on from it. They either crossed it with Reno or Boss or some other Eli blood because it wasn't holding up on it's own that much. Honestly it can cross well to anything just moreso depends on the dogs. They have different strains within their strains, some of the Reno dogs are like Reno, rugged game dogs and some that have an influence of certain dogs like Boss, Penny or T-bud have added ability and punch to those dogs which you get a few superb dogs at least one out of a litter. Not to rant but those guys aren't on boards and when they are they never speak about their dogs.