6 barrels = 6 problems like with Smooth Twist? Just don't tell me that after exciting journey with FX which was worth about 4k bucks you are still eager to dump your money on another airgun? Man are you printing these bucks?
If the hole was not there before it means they forgot to place it there at the factory. AoA tries to fix the factory issues. Does that little dent come from improper initial placement of the hole?