Are you in PP mode? You'll hear the nails then but shouldn't in disc. The BBS units (Sovereign/Excalibur) have built in iron rejection in disc that can't be lowered. You might dig the occasional iron target that fools you but by far even those will sound ghostly and bad if not null out completely. I never raise the disc dial on my GT. Always hunted with the disc dial at zero on all my prior machines, so this GT was awfully quite not hearing iron. Was worried that might cause me to mask some good targets but find that Iron Mask ON seems to do some real magic at sounding off to any non-ferrous items in iron.
Hey OBN, any idea if the Excaliburs, like prior Sovereign models that don't have an Iron Mask/On switch, are defaulted to iron mask ON? Always heard the prior Sovereign models were. Just wondering if Minelab turned it OFF on the Excaliburs to help tame down harsh salt and mineral beach environments? I've heard some say they turn it OFF on the GT for more stability in rough grounds but never felt the need to do that. My tests show me about a half inch more depth with Iron Mask On, so for that reason alone, besides the better ability to unmask stuff in Iron, I never turn it OFF. Still smooth as warm butter to me in my mineralized soil or sand sites.
