[討論] 請問一下伸卡球
請問一下
我想問的伸卡球是單純的二縫線球
就是不必往右打者內側竄那種
握二縫線用直球投法
沒有刻意壓食指應該就只是向下的沉球吧
那球速要多少才可以看出效果呢
我球速大概110~120
投曲球跟變速球都可以看的出 是跟直球不同球路
但單純握二縫線就看不出來有啥不同呢
幫我接的同學也覺得就是直球而已
這樣是不是沒有練的必要阿
感謝
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