Not really follow-through but something a trainer recently told me has helped me tremendously with my pistol shooting. I was holding the strong hand with a death grip and not so much with the support hand. When I concentrate and hold 60% support hand and 40% strong hand (gross estimates of course) I do much better. Use the support hand for most of the grip so the strong hand is mainly manipulating the trigger. I still need a lot of work on it though. My 52-1 is waiting patiently in the safe for me.