Be careful when jitter-clicking. Jitter-clicking can hurt your arm, wrist, hand, and fingers over a long period of time. Try not to jitter for over 15 - 30 seconds. It can seriously damage your hand. Stretch your arms and fingers after practicing. Try using two fingers to jitter-click. Sometimes you can improve your speed using your index finger and middle finger, or even your index finger and thumb. This may cost you accuracy though. [1] X Research source [2] X Research source Try removing your pinky from the mouse to increase your speed.

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