Samantha Stosur – Service varieties of the probably best female service kicker
Here the distinction between her typical first service (usually more or less direct with just a slight topspin) and her famous kick service (heavy topspin with some sidespin used mostly as a second service) are quite visible. In both varieties, Samantha spends almost the entire stroke energy on the dominant (right, in her case as a right-handed player) side. The "follow through 1" (= the active part of the follow through) of the kick/topspin serve then goes, besides other differences to the first service, much more to the right.
