"One thing I learned at Guitar Wisdom today..."
That the Diminished 7th Arpeggio works better (for me) in a blues progression than it does in a jazz context. I was playing the lesson progression (A D E)with some 7th chord voicings, and was trying to weave in the Dim7 arpeggios. Sounded terrible (perhaps a better player could pull it off). Went back and watched ET 27 (for the 10th time) as Tomo played it with a B.B. King feel. Instantly better!
ET27 Wisdom: "You want to be flexible, case by case, this is music"