I've wondered about the same thing and, no, I don't think you're nuts. Jefferson is maddening to study because he plays rhythm and lead guitar alternately and breaks off from one and starts the other whenever a break occurs, sometime unpredictably. He sketches things and implies things because he has no second guitarist. He's the first real single note lead guitarist in the blues, so his bass runs and rhythm work are sometimes 'ghostly'.

Guess I'll get out my old records tomorrow and see what I can figure out. I've been meaning to take on 'Black Snake Moan', an all time great. Thanks for the push.