Still having that Disc problem, Was at the old Drive again and was working in all metals, 60 SEN. and just watching the numbers and digging only 65 and up got 2 sil/dimes 8"s, and some wheaties, now there is tons of trash so I didn't care about the audio beeps , so after awhile I switched over to Disc and was using the same method about an hour into disc, mode i was getting a lot of iron grunts so now i put my mind to listening to the audio, now i'm in disc 50, sen 60, 3 tone process BP, everything was giving audio and all disc. slashes were highlighted dark but the iron one it was there but faded out not dark like the other ones. Any ideas or has anyone have this problem, hate to send it in in the middle of the season, pretty sure the DST warr. is up. Also pull 2 Buff. nickles at that disc. 50.