Holy Cow....I am saving that link on your build for the future. That is relieving to think their might be hope if this tag dies on me.
I had found the 10 1/2" dimension last night after posting, but wasn't sure where to measure on the air bag. The diagram helped, thank you. After pressurizing everything, I measured and am exactly where it is supposed to be.
I also checked the lever arms this morning on the tag axle for the air valves and they are set up to the same dimensions on each side at this point, which I am sure they were not when I bought it with the one being bent. The are rusted enough that I feel comfortable that this was how they came from airstream....and I would be scared to even try to adjust them for fear of breaking.
I wouldn't say my tag dropped 3" when we put the drive axle up on 6" blocks. It was probably closer to 2". I am gauging from pictures my wife took since I was in the drivers seat with my foot planted securely on the brakes
At this point, I will conclude that everything is working the way it is supposed to and the ride is just stiffer now that everything is correct. Thank you for all the help!