NFHS Whistle Mechanics
When I'm R2, I always double-tweet to distinguish myself from the R1's whistle. (In fact, I do this so religiously that when I'm R1 and need to blow for what is usually the R2's call, I sometimes double-tweet out of habit.)
However, I've seen people post on Facebook, that this is not correct for FED. Double-tweet by the R2 is only used for subs and TOs. Single-tweet for whistles to end a rally.
Is that correct?
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