Thank you Back of the Boat for that info. I have been busy and not able to do research like I would like. The ring has a opal setting with a ss band holding it in on silver ring. Never seen anything like that. Today was a slow hard dig as there was lots of targets and the ground was hard. It was full of trash, but I did core a couple of clad coins and a silver pendant. I am enjoying the AT Pro on the older sites that are trashy. I have a few sites to test it out on that I have hit before. The foil range does produce finds. My troubles lie in iffy or weak signals. The almighty pull tab is king if I dig trash but its ok as the wife collects them for some charity drive. The wiggle method is really helping. I have watched the video that came with it and switched to Pro Coin mode. I never hunted with headphones much. But the ATP headphones that came with is very comfortable and I dont notice them even on the hottest of days. Now I hunt in some hot weather. Hit a old rock house ruins with lots of nails, tin, and a trash dump with old cans everywhere. I have replenished my old nail collection. I did get a low tone at the base of a large old cacti that was too large to be trash. Will have to go back to that one some day and dig it out. I still have not took it prospecting or water hunting yet. But Im not worried about getting caught in the rain anymore. It has gotten wet when Im hunting parks at 5am and the sprinklers come on. I dont have to stop and run in between the sprinklers anymore. The spot where the Shower Curtain hanger came from is about 75% done with the AT Pro. I will take the F75 back over the area and see what I can find. I have been down to the clay and think Im going to find some silver there. My buddys with the T2's are cleaning up right now, but the ATP is a really good support detector. I am still learning the AT Pro. Ground Balance is very important and I finally got that down. Now I have the opportunity to compare signals with the T2, so far the ATP is able to detect the deep targets too. Again I need a lot more practice with the deep and iffy signals, digging more foil than I would like. I have went through my first set of battery's in a week. Considering rechargeable but didnt like the way they performed in my F75. I have a virgin field I picked a lot of clad out of I will hit soon. Thanks for everyone input on the numbers.