Kinda reminds me of something The Old Man said to me once: "Jack, if a dog can't do an hour for me, coming right off the chain, then I don't need that fucken dog ..."

In general, I agree with this assessment. However, there are some DYNAMOS who (because they let it all hang out) will never be able to go an hour off the chain ... but they never really need to go more than :20 because there is nothing left of their opponent ... and, if you put them in top condition, just getting :40 - :60 out of them is more time than they're likely to need to make a memory of their opponent.

For example, Silverback and his mother Missy were both awfully short-winded compared to my mainstay of dogs. But they were a thousand times more destructive than my average dogs too. Missy would blow hot pretty fast, but she had 5 bitches her size picked up in :12 or less (with every one of them having a fractured muzzle/skull) ... and the one bitch who made it to :20 with Missy didn't make it to the next morning. Similarly, no dog Silverback's size ever made it to the :12 mark ... and, even when spotting 4 lb of weight, Silverback was never off his feet one time and never took a backward step either: the bigger dogs were always on defense with him

So, yeah, Missy and Silverback were shorter-winded than the average dogs of my line (that can go an hour off the chain) ... but because of the power these special dogs had, and the pace that they set (knowing what they could do) ... these dogs could also KILL 99% of their relatives (or whatever else was in front of them) long before "stamina" ever became a factor

Jack