I am new to the X-terra 705 and one of my friends was telling me how they had found some deep silver in this park. So when I would get a signal that would read deep I would dig it only to find a deep pull tab. After digging several deep pull tabs I was starting to get frustrated and thought maybe I had it set up wrong. I tried to make some adjustments but being new on this machine thought maybe I would post about it . I have the 9 inch 7.5 khz coil . Any suggestions or ideas.