I'm new here, so be patient with me.
I recently adopted a "military" bomb detection dog drop out. He was too soft(sensitive) for their training regimen. He just turned 2. He is The best retrieving black lab I've ever had. He is pretty well trained in retrieves, blind retrieves, stops on whistle, casting, etc. my problem is sometimes he doesn't go on command on a retrieve if he didn't see the dummy, or if I have a pile, he stops after 5 or so retrieves (I have a bucket as a memory location there.
he will eventually take off, ESP. If I nudge him by his collar. What can I do to train him to reliably "go" on a blind retrieve?