The Unconcious trigger

[Aimstraight]

.....When you shoot or dry fire, take the first stage as you first cross the aiming mark on your lower, then as you finalise the aim its ready to go, and it more likely to be a motored responce. If you take the first stage after you have refined the aim you are A) wasting valuble hold time, B) redirecting concentration back to the trigger.....

That really does make a lot of sense, and seems to evolve naturally with practice.