Spread arms signal for no closely guarded? Yes or no?

[refnrev]

We were told at the rules interpretation meeting not to use it because it is an NCAA mechanic, not NFHS. I'll admit I do use it once in a while if there is a long dead period where the defender is standing farther than 6 feet away staring at the man with the ball. Sometimes it helps let people know what's happening at that moment, and like in Juulie's ilustration it can spark some action. Personally, I would like to see it added. I think is helps communicate.