Use pin point mode. You will find where you get the signal and where it pinpoints will be different. Usually the nail is off to the side of where the good numbers show up. Yes, Now that you say that I remember the nails location way off from the high signal. I'll do that. The 705 was very accurate. I used the Nox 600 a couple times then was put on Oxygen and quit for a coupe yrs. I wear a 6 pd generator on my back and went out in the yard. I did 5 - 6 holes ,and was getting to tired but I'm not quitting. Im planning on tectin more. Thanks a ton.