The current Red roster is 22 for 55 lifetime against Karstens. That's .400 folks, and that's enough of a cross section for me.
Take out Rolen's 1 for 3 against Karstens, they are still about .400.
What sticks out more is the Reds have over 1.100 OPS against Karstens.
That's just off the charts sick.
Reds all day