Thank you. This particular hunt I was experimenting with 2.5 khz. I was running RX 6, Disc 77, 5 Band Pass filter, and a recovery delay of 50. I was using a modified Hi Pro program as the initial platform. The sensitivity may seem a bit low, but It was actually running pretty hot. I had to sweep fairly slow, about 3 seconds from side to side. Today I went back and tried again with the 7.5 khz frequency,and bumped up the filter to the 7.5, Rx 10 and Disc 80. The ground was wet, and this field is heavily fertilized, but I was able to cover the ground at at a much faster pace. I ended up finding another silver ring, a couple of deep copper pennies, around 7 inches, and a strange old cap of some kind at about 9 inches. The 13 inch coil seems to be much more stable than the D2 coil. I've never been able to run it in 2.5 khz at that particular spot without greatly decreasing the sensitivity, due to EMI. In three frequency I've been able to really push it well beyond the settings I had used previously with the D2. I didn't expect that kind of difference, and am very happy I purchased the Ultimate coil.
