I've owned three of them, 2000, 2008 and a 2010 I believe. They are very very, very similar. Necks were pretty much identical...fat and chunky! Couldn't really tell any noticeable or appreciable or glaring differences. Fantastic guitars. None of them had a PCB board in the wiring cavity.
My 2010 Classic has a great chunky neck, which I like. I also like the P-90s, not too hot, not too under-wound. I have 3 other Gibsons with P-90s. All have different outputs. The Classic is definitely the highest output, and perfect for Pete windmills!
The only thing I don't like is the color. It should be the darker Heritage Cherry, like my first ('69 SG Std). I'm considering refinishing it... But, it's so good to play right now, I don't want to mess with it.