An airborne shooter is “a player who has released the ball on a try for a goal or has tapped the ball and has not returned to the floor.” “The airborne shooter is considered to be in the act of shooting” (NFHS Rules 4.1.1)
When officiating the shooter up and down, your check-down list is; feet, hand, elbow, feet. The shooter must be allowed the opportunity to come down without contact.
Observe the starting point and the finishing point of the defensive player when the offensive player leaves the floor...This will help you to get this play correctly called.
You make the call!