I recently purchased my first PRS guitar, a 2010 custom 22 with 10-top and Starla pickups. It was apparently a guitar that had been bouncing around GC for a while and I was very lucky to come upon it when the price was marked way down. When I brought it home, I found a letter with the documentation, describing my guitar as part of the "July 300." Can anyone tell me any more about what that means -- is it a true distinction, what kinds of guitars were in that group, etc.? I love the guitar regardless; just curious about its "pedigree."