The two are more suitable than the latter.

The core thickness of "Sa" is the thickest among the three. In order to reduce the difficulty of penetration, in terms of strength materials, "Dragon" and "King" are thicker, while "Sa" is thinner. In this way, the force can be transmitted to the fiber layer and large core of the steel faster through the force material, which is more suitable for some amateur players. The blade of "Kurang Biao Sa" is not as deep as that of "Kang Biao Dragon" and "Kang Biao King" under normal power.