If you read the writings of some of the older dog men of the 60's. You will find that many felt the Colby dogs improved the Dibo line of dogs. Not the other way around. Mr. Heinzl had good success with blending these two families of dogs.

It appears either or not, with so many dog men jumping from this blood line to that blood line. The Colby/Heinzl/Hemphill/Am Staff/ dogs had lost most of their popularity by the mid 70's. By the mid to late 70's the Carver dogs were the latest rage. Even the old timer Mr. Egan Skinner told me at a visit in his home. That Maurice Carver would be the next famous Pit Dog breeder probably surpassing Colby and Tudor.

I had mentioned earlier, I found it hard to cross the Heinzl line with just any other blood lines of dogs. I felt what that line needed more so than anything was a fresh infusion of Colby blood. Do not know if anyone gave it a try. By the time Indian Sonny had wrote his article on his opinion of the Colby dogs. Very few dog men probably even owned a good line of Colby dogs.

By the mid 70's any really good old line staff blood was no longer around and most Colby dogs were being sold in name only. Three main breeders at that time was still Colby's Sons/Mr. J.R.Loposay and Mr. Pete Sparks. I remember a dog peddler in Hartsville S.C. that had a whole kennel of Colby dogs bought from Loposay over the years. None were worth a ride by to even look at.

Where V. Jackson moved back to many years ago. One of Colby's great grandsons lived not far from V.J. I did not know this till about a year back. I asked V.J. why he did not try at least one breeding off this Colby man's best stud dog? Might have been worth a try. V.J. said the dogs were to big looking for his liking. I laughed,told V.J. his Johnnie dog was no midget. LOL When I added the Bullyson into those dogs. A lot of them were large to catch weight dogs. I myself still preferred the smaller bull terrier looking dogs.

If one was to use any of the Heinzl bloodline today. The best rule of thumb that has been used in the past is around a 1/4 cross coming from a good well built game Heinzl bitch dog. A example would be J. Johnson's Rage bitch. IMHO, just some rambling thoughts on the matter. The good ones are where you find them and then only a handful of dog men can properly put one up for the show and go. Overtime I saw more good to great dogs lose to inferior dogs no matter the bloodline due to improper conditioning. Which I too was not very good at it. LOL Cheers