Thanks.
I looked at this other video you showed me too. He's got great presentation from the holster. Support hand on his chest while drawing... draws to his chest, meets with support hand and then pushes the firearm out toward target. Excellent.
However, in every one of his mag changes, notice that he sweeps the firearm 90 degrees to the left and points his gun upward. I certainly hope I'm not the guy next to him on the firing range next time he decides to do a mag change. We will have words. There are times that it becomes necessary to do a mag change even if you have one in the chamber. Let's say there is a lull in a fire fight and you have spent some rounds. You want to make sure you have a full magazine. With his apparent muscle memory (he performed every mag change exactly the same way) he would be sweeping people. To me this is not safe and should not be encouraged.