Set your Swing Speed to 1 and really slow down your coil movement. I have dug plenty of deep targets with a PAG of 3 and a A.C of no more than 76. You may still get a good tone off of a nail tip, but if you turn 90 degrees and swing over the target you will see most of the time that it breaks up and shows a broad response pattern in the lower iron range. As I stated in the above PDF document if your digging to many nails adjust your VDI Sensitivity down a little and turn down your A.C. Lots of trash! I kept digging nails because they gave me a good signal! The house was originally built late 1700's, burned down and rebuilt in early 1800's.

I experienced that first hand at one old site.

I also like the example with the nail at the bottom. Originally Posted by Eraserhead View post