what jack said is so true and cant really say it better at all id like to just say 1 thing on the subject dont generalize blood lines in these dogs the older u get and wiser you get you will see why i say this cause what say jim does with his jeep/sorrels dogs or how his breedings turned out have no true grit on your possible results and achievements i mean if you get a good dog out that breeding are you gonna not keep it cause it failed as a cross in the breeding area on some buddy else's yard make your own history try your own breedings best thing to do is have good individuals from the get go.