The joint in my shoulder will start to pain when I smash hard a few times. A question to those who experienced it before. Do you know what was the cause? I came across somewhere in this forum that a player mentioned that it was due to the racket being too light and therefore resulting in faster swing which causes the pain. Is that true? Do you think the weight of the racket is the culprit? I am not a hard hitter so does that mean that a heavier racket such as Ti-10 is more suitable for me to clear/smash more effortlessly? Or is it the other way round that I should use a lighter racket such as MP88? Thanks for your advise.