Update - got back from the long w/e camping and, well, it was so dang hot that I ran the generator as much as possible to run the A/C so I wasn't able to really test out the 12VDC system. When we came back from a bike ride it was over ~85 deg inside the rv ... ick.
However, when I checked the batteries in the mornings, before firing up the generator, they looked pretty good. And that was with the Maxxair fan at 100% for ~12hrs plus lights, awning in and out a few times due to thunder storms and we had 4 boys and 2 adults.
I didn't get a chance to record voltages during and after charging but it looked good the times I took a reading.
While I understand that I have limited data to go by, I'm very pleased with how it performed when compared to any other rv I've owned. I think with the additional upgrades to the wiring I will be even happier.
Most importantly - we got away from the daily grind and had fun!
Thanks all!