i told you to pm me if you want to talk specific, cuz all i said about keystone is that he got some dogs from don in usa in the 70s and it doesnt suprise me one bit that he hasnt tested the way they should have been , because hes in holland. rods got way more alligator blood in his dogs, and some just dont line up on the right genes , being pure or not, but when the right ones line up, they produce producers. i think some of rods dogs are thorough bred machines, and are valuable for outcrossing , for gameness. they are very early starters and deep game, i think they lack some athletic skill and or smarts , but they make up for it in gameness. my favorite line is the alligator line, i also like the mayday/buck dogs. lots of dogs are bred that dont have what it takes due to physical technicalities, but are bred because you know that dogs gonna produce to a less related bitch, because you knw the line and the winners that made your stud.