It would actually be D A D F A E, because if it were D A D F B E, there would be a nasty sounding tritone clash between the F and the B notes.
I've played around with it a couple of times, it's a fun one to play.
Norway Jose and The Spire off of the new Haunted Shores EP Viscera are...
The MetalSucks podcast on MetalSucks - #1 in Heavy Metal Opinion and Analysis put up a great interview with Mark on Monday. Starts at about 18:50 or so to the 56 minute mark. Definitely worth the listen!
#83: Periphery Guitarist Mark Holcomb - MetalSucks