For 5, usually a pitcher and catcher will through multiple signs with a runner on second to scramble the signal, and usually you don’t get enough pitches in to

For 5, usually a pitcher and catcher will through multiple signs with a runner on second to scramble the signal, and usually you don’t get enough pitches in to determine which sign is real. With the aid of a camera, the Astros were getting these signals very quickly even though teams were suspicious and using “runner on second” signs against them often.