Honestly, it has to do with something more important than "reputable" breeders; it has to do with breeders who really understand what gameness means
There are plenty of breeders who will be honest, with both pedigrees and paperwork, but who still are selling something "other than" truly game dogs ... in fact, most breeders are in this category.
Also, there are plenty of breeders who sell dogs "that can win" ... but they're still not bloodlines that almost invariably lose "dead game" when they do lose ... their dogs just quit like everything else.
Yes, we've all bred dogs that have quit ... but when MOST of your losses are quits, then you're not breeding a game line of dogs IMO.
And, like I said on Page 3, most of these Redboy dogs are quitting when they lose. Almost invariably, they are not showing as game as the Hollingsworth dogs were. In fact, when the pure Hollingsworth dog Dr. Savage faced the pure RBJ dog Latin Boys' Clorox ... it again was another 2+ hour fight ... but, again, the Hollingsworth dog won, and never stopped scratching, while the other finally had enough and did stop scratching. That has just been my consistent experience.
They are simply not as game a line of dogs, on average. Again, this exact same opinion occurred from one of the foundational Redboy breeders 20 years ago, when his pure Hollingsworth dogs were stopping his pure Redboy dogs. This same scenario has repeatedly been true when these dogs have faced mine. The result is the same literally almost every time. There is no "50-50 split" ... it's those dogs ultimately have a stopping point and lose on the scratch line ...
Jack