I'm gong to have to sit with this thread guitar in hand and try out what's been suggested JohnM & Wax. Thanks for the input. But I think its a an oddity to find two guitarists playing so much alike. Usually it seems its either one person, or one very influential player and several imitators. Know any other instances of just two? Of course that could just mean that they're the ones that got recorded and that this was a known style of playing around the Mississippi- Arkansas border. It seems like a unique situation to me though.