We run jewelry mode too for coins when we get iffy signals,or those we need to "coax" to get a coin tone its usually something round and flat like a bottle cap. prefer to keep digging though,trusting discrimination hard,don,t want to miss something. Also sometimes junk removed was "masking "something else. That. 150 fun to hear on solid coin hit though! Sure you know but in jewelry mode you will still hear low tone on iron just keep going,just my opinion but i like to see iron icon go off before resuming search pattern. A little more time you can call more targets before you dig. Have fun!. Oh i keep sens.up around second notch from top,higher when few targets. seems to affect depth more than discrimination. Though little lead sinkers ring pretty good!