Again, that was one player. And you're ignoring the fact that you're comparing a counting stat to a percentage stat. The number for a percentage stat will vary more with smaller changes than a counting stat will appear to be. It's not uncommon for hits to come at a 2 to 1 rate compared to walks. Fewer walks mean a smaller difference in numbers will indicate a wider rate of change. So a change from 10 walks to 15 walks could mean a bigger discrepancy than a 20 point change in BA. (no, I didn't calculate anything there...just stating some examples). You're also using a set time frame of monthly increments. Slumps don't come in monthly intervals, they can be a week or 2 weeks or whatever. My only point was that players with walk-based OBP still get slumps both in regards to hits AND walks. Walks fluctuate just like hits do. Arguing that fact is what I found to be rather insane. I wasn't calling a person here insane, just that perception.