I'm starting this thread to find out how pool players decided one day that they "NEED" an aiming system. Is there a standard potting balls test that is administered that will determine whether one is needed...or not? Here is a little test for you; Set up an OB at the exact center of the table and the CB about 1 - 1.5 diamond(s) away for a 1/2 ball hit left cut into the side pocket. Now, make the ball. Set it up again and make the ball brush the left hand corner of the pocket (5 on the pocket) as it goes in, set it up again and make the OB brush the right hand corner of the side pocket (1 on the pocket) as it goes in. IF you can do that, you do NOT need an aiming system as your "aimer" is pretty darn good.