Went relic hunting today with the new F75. It was my first hunt with this machine. I ran in JE mode, F7, Disc varied between 0 an 5, Sensitivity 99, 2 tones, Ground ranged from 55-70. I was comfortable with this detector very quickly. I was hunting in a place I have hunted many times. The last time I hunted there resulted in one bullet. I dug the bullets in the photo in addition to multitudes of other good signals that were screw caps, camp lead, pieces of brass, buck shot, shotgun shells, etc. The audio communicates very well. I can tell the longer you listen to this thing the more the sounds will tell you. It was smooth and the depth was good. There was one deep minie ball that I was able to find with my probe before disturbing it. I measured it at 14 inches. I can see that depth will not be a problem. I am very pleased so far and am looking forward to getting to know this detector.