You make this call, too

[bigwhistle]

Question to stir the pot.....

When, on a throw-in situation, does the OOB plane go away and is now considered just a line? Is it when the pass from the thrower is released? Does the ball have to cross the plane?

If the plane disappears as soon as the ball is released, then there is no problem with B touching the ball before it crosses what was previously a plane.