Watch the Texas Shuffles - Part 3 online guitar lesson by TrueFire from Rhythm Guitar Greatest Hits Vol. 1
Keeping that loose "sloppy" sound on this style of a guitar shuffle can really work well. Also, we can play in different registers by throwing in our 6th intervals again. And be careful when you are doing any kind of "walking" lines so you don't step on the bass player. Bass players are generally docile creatures, but when the guitarist is constantly getting all the solos, girls, video face time, endorsements, etc, they can become a little edgy. So the least we can do is to try to not step all over that cool walking bass part that they stole from Jack Bruce.