A yoyo weight distribution is considered as one of the major factor to determine whether the yoyo is good or not. Just imagine that you're wielding a sword, if there isn't a proper calibration between the material used and the weight distribution during forging, the sword will be deemed inappropriate for combat as it might break due to the poor forging. This goes the same for a yoyo. If the weight distribution is not proper, the yoyo will wobble during play , otherwise known as vibe. A yoyo with a slight vibe is still playable , but if the vibe is too severe , therefore the yoyo will be deemed as a damage yoyo.
Yoyo players are constantly complaining and are unsatisfied with some yoyos due to it's weight. Don't get me wrong , they love the yoyo design but certain yoyos are too heavy and some of them are too light for their taste. The design is perfect, it fits nicely in the hand, the catch is good and it plays really well but due to it's weight, players have the tendency of loosing control of the yoyo.
So what are the steps taken to fine tune a yoyo's weight ?