went to 2 houses that I have pounded over 5 times each. Have used every coil know to man. Used a V3i, Etrac and F75ltd2. The difference this time was my new pattern file I created. It was amazing. I found 25 pennys, 6 clad dimes, 5 clad quarters, 1 merc 1944, 2 wheats, and a 1931 dog vac tag. I believe I am on to something. I was using a tornado coil in high trash and iron and still pulled a 1944 mec out. It rang out among the trash and did not null out. I believe the etrac has been solved for me. Look forward to pounding more old sites I have already been to. The proof is in the finds. 38 total coins found.