Circlehook, I went out with my friend detecting yesterday and we went to a park where he found a gold bracelet and silver resently. We detected seperately for a while and I found the normal stuff, quarters, dimes and junk. He was finding about the same but also some copper.We moved to an area of old grouth oaks(250 yr+), and found some targets together. After he would locate a coin, I would go over it before we dug it to compare readings.I was in PRO CUSTOME with the large coil, about 37 disc., 2-3 bars below max sensitivity and our machines were pretty much agreeing on the targets. His Minelab3030 does give more info on the target because we were in a town where a lot of Mexicans live and they like their Corona and the bottle tops are abundant. Never in any other town or park has there been as many Corona caps. My AT PRO shows about 80-82 on most of the bottle caps @ 2-4 inches. Even if I push iron button and listen, it still does not give a clear picture of the target. I get iron noise in that park most every location anyway. So I am afraid to not dig a strong 80-82 cause a silver dime being thin can show that too. His 3030 will give him more info to keep him from having to dig as much, but I don't have enough experience with the AT to pass stuff up or it can't tell the difference, I am not sure which. I found that an aluminum screw bottle cap flattened is much like a guarter a lot of the times. We compared the targets and I felt pretty good about the clad readings we both got. My zinc's were in the 76-78 or so range and the quarters were about low 80's area. I know that as I learn my machine it will be better, but it will never quite be the machine that the 3030 is but it is a good machine. With that being said, it didn't cost 2,300 bucks either. We couldn't find silver yesterday but I did learn some more things about the AT. I need to remember to check a target at 90 deg scans, use the iron button more, lift the coil on those loud blasting 80-85 targets to help determine if they are aluminum cans or scrap and go slow and listen for those week 80's targets. I have a lot to learn. If I get a chance to compare some silver readings with him I will get back to you. Thanks and have fun!