I am enjoying the F4, its discriminator is very accurate for coins, and with the 4 tones I find it easier to rule out foil and lesser trash. Although I still pick up a beer ring with it notched out, I am definately hardly finding any of them at all. I have and still use a very popular Garrett but the numeric read out on the Fisher really makes a difference. I think the pinpoint is great. Is there anyway to deal with the fact that the coil chord sometimes comes loose from the hole it plugs into at the housing. ? Also does any one know if they make a chord extender? Would it be easy to lengthen the chord by splicing or would that mess up the electronics and signal conduction?. Ive detected so much this spring Ive pinched a nerve in my neck , if I can get an extension on the chord , I ve figured a way to mount the housing higher in a carrying case out in front of me and wouldnt have to flex my neck downward so much, but need about 6-10' more chord. I really like this machine! Osgood