Consistent presentation of your firearm, to the same point, is very important in aligning your sights the same way each and every time. To practice this, pick a point on the wall and present your firearm to that point. You want the same point each and every time. After you have established some consistency, tape a plastic cup to that point on the wall and continue to present your firearm to that same point. Your goal here is to present your firearm into the cup without touching or disturbing the cup. Once you have established some consistency it is time to move on to another level. Take a deep breath, close your eyes, and continue to present your firearm into the cup. By establishing this type of consistency in your presentation you are ensuring a quicker sight acquisition every time. Establishing a more consistent presentation is going to make sure your shots are on target and your presentation is quicker.