Quote Originally Posted by kvothe.tk View Post
Based on all of this information, would it be reasonable to think that the Babe Herman bat I own was used (although briefly) by his teammate Charlie Gehringer, thus resulting in Gehringer ordering his own copies?
I would say that its probably a solid theory at least.

Additionally, even though one player using anther players bat usually happens for a small period of time before they order a similar bat. I have seen as recently as last season where one player used another players bat for nearly the entire season.

In 2017 Eric Hosmer of the Royals used teammate Mike Moustakas bats in nearly every at bat throughout the season. Eric never ordered his own bats based off of Moustakas bats. He almost exclusively used Moustakas bats with Mike Moustakas name label and handle knob decal with Moustakas' #8 on it. The main difference in the bats was that the ones Hosmer used were generally all black, while the ones that Moustakas used were nearly always natural handle/ black barrel. Hosmer would also use Lizard Skin on the handle and use a lot of pine tar while Moustakas didn't use Lizard Skin and used very little pine tar.

Guess my point here is that perhaps looking at any use traits the two players had would help you to determine which player used the bat for sure, or if both players maybe used the bat.