I got my second gold ring this morning with the f75, another 10k high school class ring. I was hunting a field where Boy Scouts assemble and while the field is fairly trash free, power lines run across and along the side of the field, but don't seem to affect the f75 all that much. I was in disc. 10, sen. 70, 3h tones and process de. It hit right on nickel, 29-30 and gave a high tone. I am approaching 150 hours with my f75 and still have 1 bars left on my second group of batteries. (Andy, N M) I've never posted a picture before, but when my wife gets back in town with our camara, I'll give it a try for your wonderful F 75 web page. The 2 gold rings and a standing liberty half are my best finds so far. HH jim tn