On my first time to handle my M9, I was told my some folks that the trigger should be pulled using the tip of the index finger. I practiced a lot with it but I constantly having difficulty in controlling the pistol after pulling the trigger. I have completely pulled the trigger the pistol flicks to either side! This happens as the inertia of the spring of the firing pin fills the missing or voided space between the initial and end pull.
I later read an article that use of the point or tip of trigger finger is applicable basically with 1911s and for SAs it should be JUST BEFORE the very first JOINT of the trigger finger from the tip. I tried it and somehow I have a better trigger control.
In regards to the flicking, I just dried practice and oiled the pistol well particulary the bottom of the part the holds off the firing pin when cocked [i removed the assembly to be alble to oil it]. :wink: