Coach Bill wroteSo, 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.
Why is "division line" in quotes? That's the proper term.
And, if it's a throw-in (as the OP), or a pass from the BC, it's not a violation.
If it's a pass from the FC, then it's a violation before the player even lands.