He has been much more consistent that most of his coparables. Guys like Thornton, Bailey, Burroughs, Ensberg and Luzinski were all over the place. Up and down almost every single season. Since his drop of in 03, he has climbed back to be one of the most cosistent power hitters of the past decade. Pretty sure they said he was the only (or one of two) hitters to hit at least 20+ HR every year for the past 8 seasons.

While his drop off in 03 looks bad and inconsistent with his career wOBA, there are two ways to look at it.

First off, maybe the league adjusted and he just failed to adjust back. Then from there he made the necessary adjustments and climbed back up into being a very consistent performer.

However, the more likely thing that happened is that he was just really, really unlucky that year, ala Nick Swisher 08. If you look at his LD% for 03, it was actually higher (21.5) than his career average (21.1), yet it resulted in a career worst .245 BABIP, much lower than his career .304 BABIP. While his FB, GB, BB (slight drop of 1.1%), and K percentage all remained around his average peripherals, his ISO dropped dramaically from .263 to .195 (career .228), further resulting in a career low 12.6 % FB/HR. Maybe an injury hampered his power, thus resulting in less fly balls leaving the yard, Im not sure. Its also worth mentioning that his ISO last season was his best since 02.

Im not sure what was the point of all my rambling was, especially since I am so new to stats and Im sure I have made some theoretical flaw in my reasoning. If there is a point to all this, its that even with what seemed like a horrible dip in production in 03, he really wasnt that bad, just unlucky. Thus, he has always remained a very, very consistent slugger, something we can take solace in.