Throw in-Backboard

[BillyMac]

The front, top, sides, and bottom of the backboard are all in play. The ball cannot pass over a rectangular backboard from either direction. The back of a backboard is out of bounds as well as the supporting structures.

From MOFFICIAL: "If you question whether the ball hit the back, side or edge. If the ball caroms into play it probably hit the bottom or the side so in that case you have nada."

I've heard the same advice. As the lead were not used to looking up, on a throw in, or as we're watching our primary during a regular offiensive possession, so it's hard to spot this violation, and we're probably not going to get any help from our partner, the trail, who has better things to do than watch the thowin.

Veterans. Is this good advice?