Anubis's question could have many valid answers.
From preference, to grip size, to string tension and kind, balls used, air temps, style of swing, and a host of other factors.
We suspect Babs is barely stiffer, bigger beamed, so the ball should impart the strings quicker.
But does that equate to more topspin? And that is not always a set answer.
Some players prefer a stiffer racket. Some prefer a softer racket. We know this.
Have we seen Anubis hit? And can a vid really show something that a COACH might need several lessons to figure out? And we never claimed to be coach's.