Am I wrong here, or wouldn't a 3 inch group at 25 yards with a combat pistol be more than acceptable? Most Firearm Instructors I have dealt with think 5 inches is more than adequate. Since my Glock is delivering a three inch group, why would I spend $300.00 to "tighten it up"? You get more and more humorous, John. You really don't have a clue what most of us are talking about.