given the rules (solid wood, max 2.61" and 42")...
I wonder if they couldn't have non-round profiles. Might be able to steer the ball, like a golf driver or add spin like some sort of racket.
replies(1):
> The bat shall be a smooth, round stick not more than 2.61 inches in diameter at the thickest part and not more than 42 inches in length. The bat shall be one piece of solid wood.
[0] https://mktg.mlbstatic.com/mlb/official-information/2025-off...