I find it is better to film.observe from the other side when looking at grip. Do you by chance have any video from the other side?
I attended a class by Rob Vogel, World Class Pistol Skills and decided to begin using his grip and working out with grippers as he advocated.
First, let me caution you not to go too hot and heavy on grip exercises, I developed tendonitis and had to quit for a while, then resume much lower.
I was already doing some of what he advocates, but one thing that made a huge difference was thinking about the difference between what he calls 'monkey grip' and a pinch grip.
This is a good video: https://www.youtube.com/watch?v=45QhpvY9LZc
I think Vogel is a good teacher. Like most instructors running a one-man show I felt his class size was too large, but he made a concerted effort to give individual attention to each shooter.
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