Generally when a sig model is made it is from a guitar that a musician uses, one that guitar players can identify with. So basically they are just throwing Joe's name on a Pelham Blue Epiphone. I'm sure it's the JB Goldtop with the blue finish instead. Oh wait, it comes from the "Custom Shop".
They say the blue one is limited to 1000 just like the GT was supposed to be. I guess if it's a big seller they'll do the same and make more. I think their meaning of limited run is they are limited to how many sell. If 1000 sell that's their limit, if 10,000 sell that's the limit.
Not a fan of the blue. I do own the GT which I really like.