I had the same problem with our new one. Pulls like crazy, until he chokes and pukes. Worked with him everyday to no avail. Tried the harness with no luck. Signed up for obedience training and the trainer offered this to try and it like a miracle. Not anywhere as cruel as it looks. Put it around your arm and give it a tug and you see. No poking or cruel pain. Dog walks calm, no more pulling or bolting. No more nightmare walks.
https://www.amazon.com/dp/B0006L0UGW/?tag=fabo03-20
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