Yup...it was a great experience!
The clinic sounded similar to the one you described, Picker, in that he didn't demonstrate particular techniques but played through a bunch of songs and talked about them in broad terms. For example when he played "always with me..." He talked about the detail that went into phrasing, pick attack etc. He said he had a hard time recording it...hard to believe!
He must have played about 8 or 9 songs with tracks. It was very cool to see him go at it up close (I was in the second row). Very inspiring.
Gear was very simple...he brought out two of his own guitars - the newer 24 fret JS models. I talked to the tech guy-an Aussie guy, not his usual tech- who said they organised a JS signature Marshall and JS Vox pedals for the tour. Must be good to have gear designed for and by you spread throughout the world.
The pedal board was super simple, two Vox JS delays and a Vox JS wah. The Marshall provided the gain. I'm pretty sure he left the delays on all night and didn't change the settings at all. He got heaps of variety though just with his right hand technique, pickup selection, working the guitars volume etc.
As I mentioned, I got to go for free because I was 'working' there. The clinic cost $80 and I doubt I would have sprung for it otherwise. I had two jobs. First I had to hand stuff out to people as they entered. No worries.
Second job, could I pass Joe marker pens during the meet and greet. Sure, I could do that. This was fun and kinda surreal. Not that I was starstruck, but just seeing him up close and talking to his fans (some of whom were freaking out!) was cool. He was very friendly and polite to everyone, very chilled. Man, lots of Ibanez guitars were signed! He always asked where on the guitar they would like them signed, quite thoughtful. A couple of hundred people hung around and he met all of them.
I'd look ahead..black guitar, give Joe the silver marker. White guitar, black marker. White vox pedal with blue knobs...blue marker. Blue guitar with gold hardware...yep, gold marker. I'm pretty sure I'll get called for the next G3 tour