[just another ref]

Originally Posted by Coach Bill

So, just to be clear, if you jump from the backcourt, secure the ball in the air, and land with both feet on the "division line", it's a violation? That doesn't make sense.

No. On a throw-in pass if the player leaps in the air he can land anywhere without violation. The only question in the OP is how long does a landing take? If he lands on his toes in the frontcourt, then sees the line and teeters there for a significant length of time before putting his heels down on the line would we call a violation? I'm gonna wait until that happens, then decide. But if he catches the pass in the air and lands on his toes first followed by his heels touching the line all in one smooth "natural" landing, I've got nothing.