I think it's better than a sharp stick in the eye, but there are many better choices out there. Prdator routinely posts threads with top shelf trainers coming to OKC for SD type shooting courses.
Why put your hands further away from your weapon?
Usually to keep from being made unconscious. In-fight weapons access is a complex decision making process that is very sensitive to timing. Go straight for the gun at close ranges, and you are very likely giving it away.
Whether the "flinch" training CFS does is the ultimate solution to this, idk.
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