Watch the Rocky Road online guitar lesson by Jimmy Heffernan from Essentials: Blues Dobro Solos
The funky head part in this solo is followed by some new licks that use some "chicken pickin'" muted notes. The thing to focus on here is how the solo fits right in with the head or melody, not starting in left field when I start the solo, letting it flow and carry the feel of the head part. Try out your own solo with the backing track using what you've learned so far. Make it sound like the song, not something squeezed in from a bunch of thrown together licks. Harder than you might think, but this is a great place to learn it.