Got to try the Omega with the small DD coil today. Walked into the trashiest part of a local park. I hunted for about 2 hours with just iron discrimination and just dug high tones. I was able to dig 25 coins and a nice silver ring out of an area that's loaded with tabs and bottle caps. The small coil handles bottle caps a lot better than the large DD coil. I only had 1 or 2 that fooled me. The 5" DD is really nice. I've never used the F75 or T2 but the Omega was fast, stable, and easy to use.