Ran the Sovereign over the 6" and 7" 8" and 9" dimes in ground and the detector was in auto sens, i could only get the 6" dime witch would seem to me what i was thinking this ground is badd but in manual and by turning the sens to 11oclock and cranking up the threshold hum a bit more i actualy got the 9" dime on a cople of sweeps and thats what the guy in the book said he was right . see i never would have known that, and how long would it have taken for me to find it out