Actually the 5 chord to the root chord is a normal 7th chord and root chord transition in fork, blues and rock music. I use it all of the time. The B7 in 1st position back to the Root chord E is a really cool blues chord transition. Or the E7 back to the root A chord. Especially the A string 7th fret E7 to the 5th fret Barre Chord A, really cool.