You meant speed indicator, but probably misspelled it slightly. Autocorrect (a function of the website) decided you meant dictator and changed the spelling.
If it was a speed dictator, then it would be telling you how fast to throw the ball, instead of telling you how fast you did throw the ball.
If you throw the ball and it barely makes it up to the headpin, it's telling you something. It's up to you to properly interpret what you see, to make the correct adjustment.
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