Trigger finger is out if the trigger guard and indexed up to the limit of its travel on the slide. Never put the finger into the trigger guard until actually pressing the trigger. It is the last step in the process.
In that video you see a draw and one engagement of a single target.
Last shot, full recoil-
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Finished firing, starting to break sight line-
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By this point I have broken the grip and already my right thumb is under the safety to apply it-
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Starting to flip it back on safe-
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At this point is is back on safe and my thumb is on top of it-
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The beauty of a proper thumb safety is that none of what I am saying makes it slower to shoot. All of what I am saying gives a larger margin for error on negligent discharges.