Watch the Double-Bump Jump: Solo 1 online guitar lesson by Steve Trovato from Voodoo Blues
Start with double stops and a pedal tone on the fourth string. Roll
back and forth.
I use a G7#5#9 altered chord to set up the C7 or IV chord. Out
of nowhere comes a bending twang lick. Double stops and a D7#5#9 chord lead me back to the I chord.
The turnaround is a series of chromatic dominant 7th chords.