Watch the Variation 2-3a online guitar lesson by Mark Stefani from Jazzed Blues
This segment contains some slight, subtle variations on the original solo. It's very important, when you're first learning a solid solo or money blues licks, to nail the phrasing as tightly as possible, before starting to introduce more dramatic changes. That's the best way to build something on your own that will have as much power as the original source. Watch and listen carefully to see if you can pick up on the changes, especially with regards to staccato vs legato phrasing.