by 729 fx » Tue Jun 30, 2009 2:07 am
A good method to check if the quality of the ball is good as described by ejunkie is true in most cases unless the balls can be measured by a calibrating machine as found in the manufacturing plant.
Other than the methods explained by ejunkie, I will also check for hardness of the ball. For example Ball A & Ball B, if the sound of the ball hitting the bat or the floor differs, say Ball A has a higher pitch, I would say the wall of Ball A is thinner than Ball B, thus Ball B is harder.
1) Primary set-up : YinHe(Galaxy) 986 Sriver FX / Pluto
2) Spare set-up 1 : Japan LAK - CJ8000 / 799 OX
3) Spare set-up 2 : Palio T7 - White Shark / 729 FX