YOYIZIT, Why don't you answer in layman's terms ?? most people on DIY don't know what most of your answers mean.
That's why there is Google, or they can ask for clarification. I didn't know what a therm was, either, until last year. I called the gas company, but it turns out I could have looked it up.
By asking, they are showing some interest. If they don't ask, I don't pursue it. Otherwise, I end up writing huge replies explaining every little detail, and they are not read anyway.
It's hard to gauge the level of expertise of OPs.
Remember not engineers but laymen asking questions that should not need interpretation.
You are a very complicating person to the average DIY with all your charts and references and calculations.
These people are just trying to get basic answers to save a buck.
That's the problem; sometimes there are no simple answers. You have to know basic physics, elec. theory and some HVAC stuff.
I have read many of your posts and couldn't take it anymore had to say something.
It seems other people have the same problem with you, but for different reasons.
To the op just install a new high eff oil system with new high eff A/C forget the heat pump, you still need oil back up in Cincinnati anyway.
I am going to get many replies from the Heat Pump Fanatics.