H&B bat question

[mcgwirecom]

I know in the old days when they made player model bats they would put their initials on the logo. Like 40BR for Babe Ruth. I have even seen a 40K which i know means kork grip. But what does a 40Z signify?

[murphusa]

it was a special handle material to give you a better grop like a cork grip bat

[mcgwirecom]

Ok, thanks