pedroia two-tone M9

[gameused]

I've noticed some players still using all black bats, even LS's from this year. How is that allowed?

I believe the all black bats are ash bats, only maple has to be two tone or all natural finish.

[anj1027]

why do the maple bats have such strict rules in comparison to ash bats? what advantage would coloring it all black do that these rules take away?