This is a good thread - very relevant to problems I'm having with my own cocker.
At close range (up to about 20-30ft, hunting distance) mine is pretty good and almost 100% on my commands/whistles. If he hesitates or ignores for a second then a quick "GRRRAAAARRRRR" brings his attention straight back to me, which is fine. But if I send him out for a retrieve 50m away from me, and something flushes beside him, then he's off like a shot and there's not a thing I can do about it. I have a hunch that a shock collar would fix it, but I regard it as a last resort - is there anything else I can tr