Actually, Larry (IL) is correct. Editing your frame size has nothing to do with Pinpointing. Each metal target has a ferrous value and a non-ferrous (conductive) value. The CTX 3030 has the possibility of assigning any target one of 50 conductive values and one of 35 ferrous values. If you think of the SmartScreen as a piece of graph paper, it has 35 vertical rows representing the 35 ferrous values. And it has 50 horizontal rows, representing each of the 50 non-ferrous (conductive) values. That 35 X 50 "grid" represents 1750 possible combinations of target values. Editing is the manner in which you chose to either accept or reject any one (or more) of these 1750 target values ("notches"). If you select 1 X 1, you will either accept or reject one of the 1750 "FE/CO combinations" each time you place the curser. If you select 2 X 2, you will change four of them at a time, two rows of two. If you use the default 3 X 3, you will be changing nine "notches" at a time, three rows of three each. If you select 5 X 5, you will be changing 25 notches at a time, five rows of five each. When the text of page 9 says "Target ID accuracy can be affected by other targets or ground minerals so sometimes you will need a precise pattern. At other times you will need a more open pattern to ensure you don