I assume the Chamblees NOID is own-root. Is the other one own root or grafted?
I ask because my observation is that Sophy's rose frequently has that rare little pleat in the central petals which I think I see in your NOID, top. And the color behavior seems to match pretty closely. The fact that they are different ages, on different rootstock, or in different locations could at least partly explain the different timing, I think.
Sophy's rose had a very distinctive shrubby form when I grew it. It was both very vertical and very well branched. I think it took a few years for it to top out at almost 5 ft. But none of my other roses had the same high branching and stiff vertical stature.
