About 2 weeks ago I was detecting in Wedderburn with my father we both have a GPZ each and he has a SDC, later that day I decided to have a go with the SDC as I find it is a lot of fun especially after using the GPZ all day, we were detecting on some old diggings.
I had found a few very small bits then under a old dead tree I thought I could hear the threshold change ever so slightly, I interrogated the target for a bit then asked the oldman to wave the Z over when he got a chance and moved on. About 20 mins later he called out to me and I went back over to the old tree where he had dug down about half a foot, he had a very strong target signal. I told him he could have whatever it was as I would have left it anyway. Another half a foot down and we had the target out of the ground, I was sure it was going to be a 2-3 gram piece going off the signal it was giving off and also the depth that the SDC had picked it up. Turned out to be a .6 gram nugget.
I must say I was very impressed with the SDC that day.
Settings on the SDC were flat out.
Settings on the GPZ were:
Gen/dif
sens 6
all smoothings off
threshold 27
both machines were using headphones.