I am running the machine in PRO Mode with the sensitivity one notch behind full throttle. I run my sensitivity up to 30. I try to use the iron audio turned on as much as possible, however, some places just have too much iron and it wears me down listening to all those signals. I just turn it off. Most of my coins are in the top couple of inches, with the odd one down to 6-8 inches. Now bear in mind that I am using the 9" x 12" coil, because it gives me a more solid audio off the inner front toe when pinpointing off of it. And that audio gives me hints of whether the target will probably be a coin, a ring or junk plus it's probable depth.