Football mechanic in basketball game

[RookieDude]

Pregame...boys V...my partner said he would like to use a "football mechanic" during our game.

He stated that before we put the ball in play...he would give a close fist, out to his side, to show that he has counted 5 players for each team on the floor.

I was the R...and I told him to go ahead if he wanted...but, that I didn't think "state" evaluators would look to kindly on non-prescribed NFHS mechanics. (Actually the mechanic looks like a delayed signal, for a violation, on a FT)

He stated that officials point in the air to the opposite side table official when the time is running out...and it isn't a prescribed mechanic.

He had a point.

Comments on those two mechanics and any others you can think of?