Lift is one of the things we're interested in here. However, it is not THE thing. For modding purposes and general learning about about aero, I am curious about the pressure coefficient and how it relates to lift.
Here is the Figure 5. What, aerohead or anyone, do I misunderstand when I read this as demonstrating that you were right to say a fastback shape would have a greater pressure coefficient at the rear of the roof?
Also, as an aside, I am still persuaded that a properly streamlined body with a fastback would produce less life than the notchback. But that will never look as awesome as a late 60s Baracuda or Torino.