Ya, he's got one of those ADHD personalities so he can't play something the same way twice, he just fucks around all the time and out of time. I remember Bob Rock talking about the enormous amount of drum edits that went into the black album... like WTF happened from the time between AJFA and the TBA that made his drumming go downhill so fast, haha. I guess Load and Reload put the nail in the coffin for his drum skills, those albums are as simple as it gets drum wise. But then again, Metallica wouldn't sound like Metallica without Lars.