What makes DR Fat Beams different from DR Hi-Beams other than Marcus Miller being on the package and the slightly higher price tag? 
DR seems to have no problem explaining what materials, core shapes, and construction techniques go into all of their other strings that make the different, but strangely don't go into detail about Fat Beams. I've used Hi-beams and Fat Beams interchangably for a while now, and while I'd like to think I hear a difference, I'm not sure I could prove it. Any thoughts?
DR seems to have no problem explaining what materials, core shapes, and construction techniques go into all of their other strings that make the different, but strangely don't go into detail about Fat Beams. I've used Hi-beams and Fat Beams interchangably for a while now, and while I'd like to think I hear a difference, I'm not sure I could prove it. Any thoughts?

