Hi guys I purchased a se pro about 6 months ago and love it. I have been able to find about 8 silvers so far and a IH, with the 100+ hours I've spent with my machine I feel that I've been doing it all wrong setting wise. My machine came with Andy's book and I read it from front to back so I have used Bryce's settings except I use -8 variability from the start. My sensativity has always stayed at manual 22-24 and that's where I think I've gone wrong. I live in a state with highly mineralized soil and think I might be missing targets with to high sensitivity. I swing really slow thinking that a silver will always be really deep and I will miss it with a fast sweep but from others in my area are finding them at 4-7" max. Am I missing shallow silver due to high sens or am I just looking to much into this?