Scott, I think your article is right on. Not only are hand signals much better for communication; it is much quieter in the field without all the whistle blowing and shouting. I've use hand signals for almost 40 years with my setters. They work excellent. However, I would caution owners not to get too complicated or controlling with their hand signals. One of my setters let me know I was over doing it one day by giving me a paw signal of her own. Where she learned that I don't know, but I got the message.
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