So, I bought two OS's today, time for the reviews...
GGGT had giant boxes of them all sorted by weight. The discs looked pretty uniform throughout the weights, but each color was markedly different. The yellows seemed to have the most incongruent weighting agent, with the pinks having the most uniform. In addition, all of the colors had different PLH, with the only one being noticeably different being the pink ones. The pink ones have their noses bent down a little and a little more dome. I bought an orange and a pink, both scaled at 170 g.
The orange one threw like the reviews here say. Super overstable, no hint of a turn, very meathook. I didn't like it. The speed was there but the glide was not, kind of like a whippet on crack. The pink one was a different disc. Still very overstable, but the fade happened later and was toned down. While it didn't flip it did hold a straight line for half the flight when thrown flat. I could see the pink one developing the slightest turn with a little TLC.
I would recommend buying pink Nuke OS's. I wanted a Nuke that was a little more overstable then a regular Nuke out of the box, and the pink one was exactly that. It also didn't have the super crappy weighting agent injection. I would not recommend orange, or from my visual inspection any of the other colors. Definitely DO NOT order yellow online, some of them had almost zero weighting agent on one side and a pile on the other. That is unless you want a makeshift Epic.