This is from "Charles Rock Solid Setup", I don't know why the site is down but luckily I saved all the articles:
1. Coins and round objects in general give a nice wide, robust signal as you sweep across them, often they sound fluty like several notes playing on a flute as you sweep across. This is very much different from trash items. Trash tends to give you a short, chopped off signal compared to a coin and the tone is generally a flat, mono-tone signal verses the fluty sounds. If you picture sweeping the coin, it may give a signal 6 inches wide across the ground where shallow trash might only be 2-3 inches wide. Once you learn this distinctive characteristic of coins and round objects you can wade right through the worst trash heaps and pick out the coins without much effort. Trash items are like my threshold now, I just mosey along until I hear that rinnnngggg fluty bicycle bell like ring go off, then I dig. Once this clicks you will start hammering coins left and right.
2. Slow down, don't fan the Explorer back and forth like a DFX for example, not too slow mind you, I'd say medium slow. Also slow down your pace, overlap your swings 50% pick at the ground and around trash objects, expect to find some coins and you will. There are many good coins left near and under trash that the older detectors could not lock on, the Explorer will get them but not if you are moving too fast. Every time I get to racing across the park I stop finding coins. I found a barber half directly under a rusty crown cap, I found another barber half right up next to a big chunk of iron, I could only get a signal from one very narrow angle, and if I turned a few degrees either way it vanished. I found a barber quarter, barber dime, and a V nickel in a single plug in a spot that
