Cem-bsee, I did not see any duct work or CFM data on the architect's report, just "6 tons".
I'm beginning to see that I have over estimated the load based on the number of people.
No home theaters. My goal for the last half of my life is less TV and more reading.
Dan, thanks for the comments. I agree that I need to be more realistic, but I needed some feedback and knowledge so I could assess realistic input.
Parking? Make 'em hike. We car pool here in Bakersfield. Our infrequent get togethers probably involve 7-8 cars.
On the zoning issue, I have gone back and forth on the issue and it has been difficult to even speak to a contractor who would consider it. But now it looks like a 5 ton single unit would handle the cooling load. That was the point of the J calc.
The contractor and I are still looking at the XL19 vs. XL16 question. He prefers the 19 but is willing to entertain my desire for a R-410A system.
Thanks again for all the information.