Proper Timeout Signal

[Rick KY]

I noticed in the Cincinnati v Connecticut game last Saturday the white hat used signal 3, followed by pointing to the team being charged a timeout, to indicate a charged timeout. Until now in high school and college I had only seen the signal using two arms pointing to indicate who is being charged a timeout.

In looking at the signal chart you will not see the two arm variety pictured, even though that is what is commonly used. I think the use of signal 3 looks better. What signal does everyone use? Which is correct?