The mallet is just used for very, very light tapping to push the screwdriver between the insert and the finger hole. I don't wail on it. And usually, I don't have to use the mallet, anyway.
Also, notice that I was talking about having to use a rasp, bevel knife and bevel sander to remove residue left behind from an insert installed via the two-drop method. It was as if the super glue had broken down the structure of the insert and made it one with the ball.
Jess