Pre-pull muzzle position or Hold Point.
The place that your muzzles are positioned before calling PULL is absolutely vital to good shooting.
Every target has what's known as a pick-up point. The pick-up point is the place that you first focus on the target. You will also have a gun hold point where you need to hold the guns muzzles. That place will be just a little ahead of the pick-up point. The exact place will be from your pick-up point X (times/multiplied) by your reactionary time. That is to say if you look at the pick-up point, call PULL and then bring your finger up to the clay as fast as you can as if mounting the gun, your hold point will be where you managed to put your finger on the clay target. This is where you put your muzzles. But always put them JUST under the flight line of the target, as you should ALWAYS come UP to a target. This way you will never loose sight of the target behind the barrels as it fly's over the top of the barrels. If you have the muzzles too high it will cause all sorts of problems with your mount / swing / focus etc as you loose sight of it behind the barrels for a moment.
So remember to ALWAYS come slightly up to the target (both clay and feathered).