So, a little infor on the man, Gary Cox, who played those blues tunes so nicely on the sIII.
According to legin, Gary has played a couple of the Marshall RI amps and he thought the sIII was streaks ahead on tone.
THE GARY COX BAND - UK -
http://www.garycox.net/Hailing from the United Kingdom, Gary Cox is a renowned slide guitarist. He’s toured extensively in the USA and Europe playing anything from roots, blues to ‘out there’ rock.
Think of a mutant blend of Ry Cooder, Rory Gallagher, SRV and Jimi Hendrix and you pretty much have the idea. From the straight and pure old school blues to the edgy rock blues, expect virtuosic slide guitar with traditional vocal styles.