Ok, I have tried to resist posting the answer to this question.
How do you hit a change up?
With the bat!
Learn to do what Bonds is doing on the left and the right. Easier to see on the right side. Then your hitter will be equipped to hit the CU or any other pitch thrown at them.
I alternate FB-CU to my DD when doing front toss. I want to to see if my DD is able to 'match' Bonds on the right side of the gif.
Ok, I have tried to resist posting the answer to this question.
How do you hit a change up?
Not always easy....
A former pro told me that the absolute best way to deal with the change-up was to hit the fast-ball.
He wasn't joking either.