no excuse for using young dogs ,take straws !! if the dog works consistently well as a adult , use the dog . if he has a short life then you have the choice of taking a chance on the straw or maybe another suitable dog. as for useing a dog thats not been worked cos the bloods in it is bollox imo you want the best of the blood and the only way you know what that is , is to have them all worked . its the speed breed fashion and the mls fraternity (my line syndrome). unfortunately they tend to shout the loudest cos they want the fame / fortune or both .
i dont preach at no one if i want to