another thing that works well (rather than using a long line) is my notorious e-collar....
it takes away the handler-conflict.... same technique that WD explained only Aus....NO <e-stim> Aus... ;)
but Storm is right on with the second sleeve!! Show the dog that there are other sleeves out there....
also clarification question.... you said that he growls at you when you tell him to out...
is the sleeve still in his mouth when he growls??
are you up on him pulling when he starts growling?
or is he just growling at the sleeve that he just killed??
because if mine was just revved up high to get his bite, and I craddle him or even stroke him, he is so juiced that he is growling.... but I don't believe he is growling at me... he is just pumped.....
a few times, after his most intense sessions, he did this growl/scream, and slung his head all around as he was outting... and instantly refocused on the decoy
he was very serious that day!!!!:p