Main reason for using the carioca on a backhand approach is to shift momentum back toward the center of the court, instead of stabbing and stopping; used to be taught with a slice approach.

With a top-spin approach, this hacker would argue the style used by pros such as Samantha Stosur is much preferable for most of us, rather than this full swing — get low, much abbreviated backswing and follow through, down low, windshield wiper.

Also, I know this is politically incorrect, but if the top pros are used as examples, they’re increasingly approaching inside out if they can take a big cut, instead of down the line; courts are getting so egregiously slow everything else comes back with interest.

Another point – on the FH approach you do not mention the often used footwork of the walking step and hopping step for keeping your body moving towards the net through the shot. While I do not disagree with the setup you demonstrate as an option it is not often taught.