I got a Bat Jack for my DD.She uses the Turbo Slot gloves but my feeling was she could cheat by holding the bat back in the palm of her hand and not in the fingers which the glove was design to do.The Bat Jack keeps the bat out of the palm and up in the fingers.She tells me she feels like she hits the ball harder.DD got the Bat Jack at the end of her fall ball season.For the little bit of money it cost I feel it was worth the investment.We will workout with it all winter.I feel that atleast we have the grip right and are free to work more on DD's hitting sequence.I hope this helped it your decision.We are pleased.