Using a breaker bar or hand ratchet/cheater pipe is a great way to tweek the ball joint press out of alignment.
The impact applies torque without much side-force. The long, offset handle of a breaker-bar or ratchet puts side-force on the BJ press, tends to bend it. This is why "Loaner-Tool" BJ presses don't work well sometimes.
Be really careful to support the breaker bar/ratchet head, to absorb the side-force so the BJ press doesn't have to.
The impact applies torque without much side-force. The long, offset handle of a breaker-bar or ratchet puts side-force on the BJ press, tends to bend it. This is why "Loaner-Tool" BJ presses don't work well sometimes.
Be really careful to support the breaker bar/ratchet head, to absorb the side-force so the BJ press doesn't have to.