I was just playing around the Pride riff and is it possible that the general tabbing on the internet is a bit off on this one? Above's version is what you will find on all sites. To me, this part is correct:
(main riff) :
E------------------------------------------------------------|
B--12--12--12--12--12--12--12--12--12--12--12--12--12--12----|
G--11--11--11--11--11--11--9---9---11--11--9---9---11--11----|
D--9---9---9---9---9---9---9---9---9---9---9---9---9---9-----|
A------------------------------------------------------------|
E------------------------------------------------------------|
But the 2nd and 3rd part of the main riff I doubt Edge plays the D string, it just sounds way off (especially during the third).
E----------------------------------------------------------------|
B--10--10--10--10--10--10--9---9--10--10---9---9--10--10------10-|
G--9---9---9---9---9---9---9---9---9---9---9---9---9---9-------9-|
D--9---9---9---9---9---9---9---9---9---9---9---9---9---9-------9-|
A----------------------------------------------------------------|
E----------------------------------------------------------------|
E-----------------------------------------------------------------|
B--10--10--10--10--10--10--9---9--10--10---9---9---10--10-----10--|
G--11--11--11--11--11--11--11--11--11--11--11--11--11--11-----11--|
D--9---9---9---9---9---9---9---9---9---9---9---9---9---9-------9--|
A-----------------------------------------------------------------|
E-----------------------------------------------------------------|
If you watch carefully on the "It Might Get Loud" DVD you'll see him move down from the D string with his index finger after the 1st part.
Ideas? Also, I tend to believe he does play the lower E string on the last 2...but I might be off on that one.