ASC E-learning Pistol (Trigger pull) performed by Olympic Gold medalist Pistol Lesson (Trigger pull) Demonstration Korea National Shooter and Olympic Gold Medalist Jin Jong-Oh.
Found it helped the most; for me, to think, “Trigger pressure, increase pressure, pressure….” Don’t think “pull” or any motion connotation - just concentrate on “pressure.” And then SMOKELESS PROPELLANT’s “Bang !” and Recoil have their own set of consideration to address.