SPX - what if its an ABC flat to a 2? Look out below

looking at an alternative.... the problem I've had is the ABC to bottom DEC 24th does not count well for the B to C move. In a zig zag the B to C should be 5 subwaves. In this chart it does not count well as 5. In my chart it counts better as 3's. If its corrective what might be the higher level is a ABC flat to a 2. Thoughts?