Today I took a small 14k gold earring (1.2gram) and my 18k ring to the beach. I used Zero discrimination, Jewelry Process, 4 Tones, 25 Sensitivity and I manually ground balanced the detector. It ground balanced at a setting of 1 (one). I then turn the sensitivity up to 60 and did my test. In wet sand that water hit on occasion. I could detect the earring at 4 inches.(my cz20 would only hit 3 inches) The 18k 8.8 gram ring it would only hit it at 9inches. (the cz20 would go much deeper) As stated in the manual it is not for the wet sand but I can use it to go in the upper parts of the wet sand with no problem. That was what I wanted it to do. I will use it for the dry sand and in N.C. to hunt old sites where my family lives. I know where there is a old civil war site not many people know about. Now, I have to learn how to use it in the dry sand. Will play again Saturday in the dry sand. Here is a picture of the gold I used. And no I did not find that ring. I bought it 25 years ago. 
HH Tom
HH Tom