I came accross a technique that really helped me learn this tune. I struggled with this for years and finally one day I got it, this is how I did it:
1) Play the A pedal using alternate picking
, beginning with an upstroke, this ensures that when you hit the B note on the 4th string you're on a downstroke.
2) Play the A pedal for several bars, don't even worry about the notes on the 4th string yet, just try to get the 'swing feel' of the intro.
3) If you know the riff well enough (from hearing it a gazillion times like we all have) then begin to fret the notes on the 4th string (don't pick them yet, just fret them) while continung to pick the A notes. Jam along to the tune if you don't have it totally memorized. Really try to get the feel of it by accenting the right notes.
4) After you've practiced fretting the notes while picking the A note for awhile, begin to pick the other notes, you'll find that it's not that hard!
Hope that helps! [img]images/smilies/icon_thumb.gif[/img]