The handle shape of shakehand blades has variations such as FL and ST. What are the differences?

FL (Flare)
Handle with a wide handle end. It fits in the palm of your hand. The center of gravity comes closer to the handle. The shape that many players choose around the world.

ST (Straight)
This handle is straight and has the same thickness from the top to the end. It makes changing your grip easier and faster according to the way of hitting. The majority of choppers choose this shape.

AN (Anatomic)
Handle with a wavy shape. The handle fits the entire palm when you grip. It is comfortable shape for beginner players.

SI (Straight Incline)
The width is straight and the thickness becomes thicker toward the handle end.