Player Diving at Division Line

[Diesel]

A1 is dribbling in the backcourt.

a) A1 loses control of the ball and the ball rolls into the front court. No other player touches it and A1 dives on the floor such that his arms have grabbed the ball while his legs are still in the backcourt.

Once the ball crosses the division line the 10 second count is stopped (Situation 9.8B) and the ball has front court status. 9-8-2 reads "a player shall not cause the ball to go from backcourt to frontcourt and return to backcourt." By A1 grabbing the ball with his legs still in the backcourt, does that make it a violation? I am thinking that it would be the same thing as picking the ball up while standing and straddling the division line.

b) A1 loses control of the ball and the ball rolls into the front court. B1 taps the ball into the backcourt and A1 dives on the floor such that his arms have grabbed the ball while his legs are still in the frontcourt.

Not a violation since A would have a new 10-second count and would not have all three points across the division line yet.

Are there any other situation you can think of where a player laying down at the division line would be important?