[JRutledge]

If it really matters to you, it is not a loose ball play, but it is enforced just like a loose ball play for IG. There was a time that the penalty for IG did not fit into an illegal forward pass definition and there was a debate over if IG actually was an IFP. Now the definition fits, but the penalty is enforced as if it was any loose ball penalty as to have IG you must be passing behind the previous spot (or LOS) in order to consider the other classifications of that penalty. Once you cross the previous spot then it does not matter who you are throwing it to. Either way it would be a foul enforced at the spot in either case. This is something I would expect the NF to ask on a test rather then what is actually relevant to the enforcement.

Peace