I am seeing a pattern with some of my reading on this and various forums about people not recommending the CZ3D in heavy trash but nothing much about why it's not recommended for this type of hunting. I'm hoping some of you users can chime in regarding this please? I'm not so much concerned about iron trash littered old home sites as I don't have those to detect but more curious about performance in trashy city parks, trashed freshwater lake camp areas and such where I will encounter some heavy aluminum trash. Is this perfectly fine for the CZ3D or do I need to invest in another detector for pulling coins out of the heavy trash? My interest in the CZ3D is its ability to place nickels in the high tone range as well as other desirable targets.