My dad has been in law enforcement for 20+ years, and a defensive tactics instructor for much of that, and we've often discussed this very subject. His response is always that for him, in his situation (rural sheriffs dept) if the decision were his, he would still be carrying a 4" .357. The reasoning? Six for sure. He says he's fired autos enough to know that they will all mafunction at some point, and he just prefers the feel of the revolver in his hand. He also always jokingy adds, "In all my years doing this, I've never once had to shoot more than six people in one shift."
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