Keep in mind, for those doubting the efficacy, its not necessary to know what exact pitch is coming (Fastball, curve, slider, change up,etc).
Just knowing whether it is a fastball or an off speed is enough, at which point, it simply becomes a matter of transmitting a binary signal.
Transmitting the sign, could be as easy as sending a 1 or 2, then the dugout simply yelling, "Let's go so-so" for offspeed, or "C'mon #12" for fastball.
Most major league pitchers not named, Kershaw, Felix, Max, etc, only have 2 ++ pitches,
Just knowing whether it is a fastball or an off speed is enough, at which point, it simply becomes a matter of transmitting a binary signal.
Transmitting the sign, could be as easy as sending a 1 or 2, then the dugout simply yelling, "Let's go so-so" for offspeed, or "C'mon #12" for fastball.
Most major league pitchers not named, Kershaw, Felix, Max, etc, only have 2 ++ pitches,