You can try this: sens 53, disc 1-15, thresh -3, DE mode, DP tones, dont notch out foil...yes if you get over silver, like you said about quarters, you will not miss, same with little gold rings, you wont miss them with this program...seems to really work comfortably and fairly deep too, you will still be hitting those coins, and should be crossing over silver/gold/plat eventually, you have to investigate any unusual signals, thats why I like DP, it gives a different sound for every integer on the 0-99 tid scale. If you are stabbing at a signal with a screwdriver, and dont hit it right away, dont walk off! those rings are hard to stab since they got a big hole in them, especially nickles, dimes or pennys...you should be able to stab them on about 3 trys or less. so if you dont hit the target quickly, slow down and recheck the signal and gently probe around for the object. If you are in a totlot with metal poles, take special care of the overload signal when you get close to them, if the signal gets disrupted, but is not identifyable, you have some other target in there close but hard to pinpoint, so just drag the chips, gravel or sand out of there with the side of your foot, and sweep it in the clear. You want those unusual non-solid signals for chains...they might be balled up or laying flat, they may or may not have a charm on them, if you happen to find a charm or medalion, gold or silver, slow down and sweep the area for the chain it fell off of. Remember, if its a fine chain, its not gonna sound like much of anything, just the clasp. Lastly, location...I bet you a dollar theres a ring at your local school right at the edge of the parking lot where the teachers park and where they walk into the school along the sidewalk..so those high probability places are searched with confidence and concentration, Good Luck!
Mud