I decided that from now until October 30th of this year, I will dig every repeatable foil signal with a consistent VDI. Why? Because I want gold and lots of it.
Somebody posted a list of all the gold/platinum that they have found with the AT Pro on the Friendly Metal Detecting Forum with the corresponding VDI number for each piece. I took those VDI numbers and built a basic frequency chart. See for yourself why I decided that I needed to dig those foil signals.
The methodology is simple. Dig every foil signal with a VDI of 42 to 49 that has a nice solid tone and a consistent VDI that doesn’t change by more than one number, i.e. 42-43 or 47-48, etc. Also, dig every nickel signal using the same criteria. Here is a picture of the results of the first night of the Great Gold Hunt of 2011.
Every object here met the criteria
Ok, so there are some bottle caps that came in around 77. My wedding band comes in at 77 in the AT Pro. The pull tabs came in at 51-52 or 52-53 which is a nickel reading on the Pro.
Here is the frequency chart mentioned above.
Use this chart as a starting point.
The Dirt Is Good To Me 
Can you put up a direct link to that thread?
Also, I’d add that consistency in VDI isn’t always a great way to tell trash from treasure. Lots of things from ground minerals, to extreme depth, to nearby trash, to other metal in the hole can throw off a “consistent” VDI into one that bounces around. Just my experience anyways.
I was afraid somebody was going to tell me that! Oh well, and here I thought I had a way to avoid digging every foil signal
😆
Anyway, the link is:
http://metaldetectingforum.com/showthread.php?t=87386