Have worked this trashy area with all my other coils and the soil is mild. Hit a solid 38 both directions of swing@3". No doubt what it was using 3 tones. Broke out 10.5 towards end of hunt. In my area the con. coil gives me the best seperation and that allows me to pick good targets out of the current trash using default pattern 3. I back threshold down to 10 and sens. so not as noisy. The 705 MF coils have put alot of silver in collection in last 2 months.