I think there's a big difference between the blues guitarist on records and the one you hear live. When I was a kid and listened to Clapton records, I liked them but wasn't blown away. Then, the first concert I went to was Eric Clapton and Robert Cray, and my eyes and ears were wide open after that. What I saw that dude do in a live concert blow my mind and I was a believer. More chops, more feeling etc. I'd be interested in hearing Joe live to see if I have a similar experience.
johnny winter was like that. his albums didn't do him justice. his live shows were some of the best i ever saw