I am using a Carvin dc 727 for more than 7 months now. I have to say that I am very satisfied with the guitar and its sound as well. I was wondering If I'd switch the pickups to M7s. Anyone has any experience with a Carvin 7 string and M7s combined? I really love the sound of the guitar now. I am curious if the M7s add anything extras to it? Is there any difference?