Those are some really interesting stats.
We are killing it in the 6th, likely on our third time through the top of our order against the starter. Or maybe weaker middle relievers. Either way, our hitters seem to figure it out.
Our closers are definitely not dominant—based on that 9th inning stat—but it hasn't seemed to matter. That ninth inning is worrisome but we've had enough runs banked to withstand it in most cases (all except 1, apparently). Then again, we are 0-10 when trailing after the 8th because we can't stop teams from scoring even more in the ninth. It's hard to make a last-inning come back in those cases.
On the other hand our middle relievers are doing well in combination with that stellar middle-inning hitting.
Then again you can always make stats say what you want them to say.