I'm not convinced how much of the offensive onslaught was due to the bats either, but all of the sources I've heard/read have indicated that 5 players in the Yankees starting lineup have been using the bats:
https://apnews.com/article/torpedo-bats-yankees-6ac6c797ea93...
https://sports.yahoo.com/mlb/article/which-mlb-players-are-u...