That's awesome, cheers rokket, I look forward to hearing your conclusion!

At one point I thought it might have been double-tracked at different pitches, but for some reason I can't put my finger on, I keep thinking it's got something to do with the type of guitar.  In the end I gave up and thought I'd better ask.

Might have something to do with the pickups even, but again, even if it has, I wouldn't know what.  It's not as if it's anything fancy either, it's just a nice rounded distortion sound I'm trying to understand better.  When you try it, tell me what combo you reckon it is, the guitar and amp as well as any technique you suspect was used.

Cheers.