Hi all just wantede to say ive been after a new md old one had a battery cover missing (garrett 100) anyway i got in touch with garrett and they sent me free of chargse a new cover i know its not much but when you consider im in the uk and they sent it from america all free then credit where its due i cant fault them. now that i got it ive been messing with the settings trying to find which would be best it has a dial with trash,pulltabs,rings,coins if i put it between coins an pulltabs i do seem to pick up everything wifes ring and copper/silver coins if i put it to rings i dont get no signal of the silver any tips or help would be most appreciated and once again thank you garrett