I live in southern North Carolina, so that means a LOT of iron in our soil. I've used my White's 6000 Di Pro in all metal, with no problems. After a good ground balance, the mineralised soil is excluded from the audio signals. But my SE is a whole different ball game. No matter how low I adjust the sensitivity, when I set up for IM -32, the audio sounds like an electronic machine gun. It's responding to the iron in the soil. I use ferrous tones, but the constant staccato of the audio is nerve wracking. I am very familiar with all of the controls & adjustments, so I feel good that my settings are not out of line. Someone please tell me this is not normal, so I can send it back to Minelab for repair or replacement.