Ok, here's an easy question for your seasoned vets....

[BktBallRef]

The thoughts posted below are purely my own:

#1, boys or girls? Girls seem to move the ball from side to side more. We don't rotate as often in girls'games.

#2, don't rotate until all 3 officials are in the FC. Then, we usually wait until the ball settles below the FT line extended.

#3, notice tendencies. Do they have a big man who posts up in the low post? Do they run plays to a certain side of the floor? Do they unbalance the floor? Those are also reasons to rotate.

#4, if the C moves toward the division line to officiate a matchup, you can rotate to that side of the floor.

#5, if the ball swings to the C's side but you anticipate a shot, hold your position and don't get caught moving across the lane with a shot in the air.

#6, when you rotate, move with purpose but focus on your matchup. Don't ball hawk while you rotate.

Help that helps.