hi there thanks for letting me join this forum i live in scotland and have detected gold near where i live for a few years i have a few minelabs i have got over the years 2 sd 2200d a gpx 4000 5000 and a gpz 7000 out of them all i have found more with the 4000, gold from 0.5 gram to 3 grams i cannot get the 7000 to run quiet like the gpx series the ground is mostly wet glacial till with a lot of iron deposits in it i went over a patch with the 7000 in high yeild no result went over same patch with 4000 and got 2 bits out of it with coiltek joey coil does the 7000 need dry ground to work properly have ground balanced it with the ferite ring . i even got a 2 grammer with the 2200 are all 7000 like this in wet ground conditions or am i missing something on set up i know i am walking over gold with it have had this detector for 6 years done a lot of hours on it with different settings