I read that article - IIRC, you would angle a piece of wood in front of the amp, within a few feet, and point the mic at the wood, either 90 degrees from the surface (for maximum reflection) or 180 degrees from the amp (for maximum rejection of the amp).
Seriously, though - inspirational? I dunno. Do you like the way the amp sounds in the first place? If you do, then maybe try to get it cleanly on tape rather than close-mic'ing the amp (garbage in, garbage out). Room mics can be great!
Also - if it's bluesy, don't underestimate the value of a "trashy" sound, rather than going for gobs o' fuzz (if you're going that way...) Just a little grit can sound much "dirtier" than full clipping.