I hunt the beach 99% of the time with my Nox 600 and during my hunts I have noticed that quarters are ringing up just fine (28, 29, 30) but scooping them up is sometimes confusing, they don't seem to be where the sound is, it sometimes takes me 3 to 4 scopes to find it. I like to use the wiggle method until the sound ends and then scoop at the end of the coil. I don't usually use the pin point, but I find myself using it more when digging quarters now. I have also noticed on U Tube videos that this happens also. Maybe its my Nox or maybe its operator head space, does anybody else experience this?