::I now see that the key to idenifying targets with the Cibola is thru the pinpoint button. There is a DRAMATIC difference in the pitch of the sound when you press the pinpoint button over a target. I can easily tell an aluminum can now,, only by the difference in sound when I press the pinpoint button. An aluminum can makes a high pitched,, BEEEAAP. A quarter dime and copper penny are a little lower BEEP, AND A nickel is almost a BOMP. OR BEEEOMP. These sounds probably will differ according to how a persons brain interprets sounds, and the type of headphones you use,, but there is Definitely a difference,, and im excited about getting it down pat.. 