Originally Posted by
SLG
It also looks like your strong thumb is digging behind the holster for the grip.
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Finally, though very hard to tell from the video, it looks like you're riding the gun in the holster a little longer than needed. This is probably partly because you're digging the thumb, which tends to tighten you up and slow you down, as well as take more time to accomplish. It's also probably partly due to not pushing fast enough. As Todd likes to say, sometimes you just have to go faster. Or something like that.