Jump stop vs "up and down"

[Jurassic Referee]

Originally Posted by Nevadaref

Let's consider an OOB violation. There is no judgment involved in making this call. Either the player was observed contacting the OOB area or he wasn't. Or it is a simple matter of determining which player touched the ball last before it went OOB. These are factual decisions, not judgment decisions.

And A1 in the original post was either an airborne shooter or was performing a jump stop. The original poster in the original post made the factual decision that A1 was an airborne shooter and wasn't performing a jump stop. That means that there is no judgment involved when an airborne shooter lands still holding the ball. That airborne shooter has traveled.