I've just gone through my first set of batteries in my Edge and at would like to know if any other Edge users are experiencing constant tones while they search. I am finding things and realize that that you must sweep a target multiple times and from different directions. I get false tones every couple of sweeps which change and in addition to being very annoying, I'm worried about missing targets with so much noise. I've set it at: Disc 0/Sens 5-10 and in factory preset old coins with no change. I just moved on from a 1266 which is the only machine I've ever used prior to this one. Any ideas and/or advice...just don't think I can get used to the constant false tones (I'm not sure what else to call them).