I got off early and hit the water with the infinium today.Machime worked good on sand but sounds like a accordian in the water'Boy does it like iron!I installed a magnet in my long handle scoop and it works quite well .Started getting frustrated at the constant false signals at the end of each swing.tried pump balance on fast then slow then lock.no luck My ears are still ringing!Going to switch back to big D COIL AND SEE IF IT IS MORE STABLE.Wondering if i should have got the Excaliber for the iron rejection feature.Next kid i see with a sparkler im going to break his fingers.lots of wire and beer caps!not many coins 2 in 2 hours 20 pieces of iron.tried running thresh hold silent raised discrimination to no avail.i am here on the gulf of mexico in florida .any clues ? comments?I miss my old pi 1000! wayne