The D2 coil is awesome on the MXT it gets as deep as the 12" coil for me, I get silver dimes at 10"+ and had a few at 12". Try to run gain as high as you can without to much noise for the deep stuff, I usually run mine at +2 gain as any more and the noise is to bad to hear those deep faint targets, and sometimes you might not be able to run as high gain if you get into a bad EMI area. A good set of headphones is a must for those really faint deep targets and the MXT is a powerhouse that will benefit from a really good set of quality headphones and the D2 (whites 10" DD coil) really shines on the MXT and stays on mine 95% of the time. I did get a detech 13" DD coil looking for more depth and the D2 seems equal in depth but the detech 13" coil did get me a few deep dimes on edge that gave just enough better signal to dig these were like 10" and on edge. HH