BillyMac wroteSimilar signal in the IAABO mechanics manual says "Five Seconds Closely Guarded". There is no "Five Second Violation" (like NFHS Signal 24) in the IAABO manual.
Doesn't mean you're wrong, Billy. Means some IAABO rules-making monkey is wrong, trying to improve on something that didn't need improving in the first place. The open-handed 5 finger signal has been de rigeur everywhere on a throw-in time violation as long as I've been around afaik. The purpose of any signal is tell everybody in the gym what you just called. And NFHS signal #24 does that in this case. Using signal #26 instead...like IAABO wants you too...will just confuse everbody in the gym, including your partners. Nobody will have a clue whether you called a 5-second violation or a spot violation.
Stoopid IAABO rules-making monkeys!