Okay, Seems Mr. Petrucci and EBMM decided to tweak the JPX, so for 2011, we get the newest evolution in the Pet line of geetars, the JPXI. What's new? Well, gone is the 5-way switch, which I applaud, so back to the 3-way toggle for pickups. The neck gets streamlined to a symetrical, extra-slim profile with a flat 20" radius. The body is non-chambered and has a mahogany tone-block. You want the full specs? Follow the link below to the Music Man site and read away!