[DMRefGal]

During an attempted throw-in, A1: (a) holds the ball through the plane of the end line and then passes it; (b) steps through the plane (makes contact with the floor inbounds) before passing the ball to A2; or (c) holds the ball through the plane and hands it to A2. Ruling; A legal throw-in in (a), but a throw-in violation in (b) and (c).

Once you have touched A2 with the ball (or A2 has touched the ball), you have made "contact with the floor inbounds" because "A ball which touches a player or an official is the same as the ball touching the floor at that individual' s location." We already know the handoff is illegal, so, once A2 lets go after the touch, the ball is then back OOB in A1's hands. Right?

If this analysis is correct (and I am going with it), I propose the following interpretation:

As long as both of them have their hands on the ball, there is no violation until:

a) A1 lets go of the ball - then you have a violation for the hand-off.

b) A2 lets go of the ball - then you have a violation for OOB.

AND

If A1 and A2 are both holding the ball and do not let go, and neither keeps a pivot foot, would there be a traveling call because the ball is touching an inbounds player and is not OOB until A2 lets go?