Hi all. I am fairly new to detecting (about a year). I have an Ace 300 and Fisher F75. I have made a few good finds (A couple Indians, Mercs, and many Wheaties, as well as old shotgunshell stamps). Something that I have found that confuses both machines is bricks, and large stone slabs. The edges will read in the high #'s for vdi, and will sound like silver as well in both directions. Im figuring out how best to spot these areas (targets too long). I haven't really seen this mentioned before and I wanted to contribute a bit and also see if anyone else had some tips or tricks.