Just wanted to say Hello. I am new here at the recommendation of Old Longhair.I found a couple new spots this week and am going to try and get out before we refreeze. I have been using my stock 7.5 khz coil with success. I picked up a 3khz 6" digger coil but can only seem to dig coins at 3-4 inches deep. Man is that thing hot. I dug a 1916 wheat today that hit at 44. It has been raining and melting snow for days so we are very wet. I think that contributed to the high TID. Any advice on the digger will be appreciated. Anyhow hello and Merry Christmas!