I just got my second Blizzard disc today, a 154g Destroyer. After reading everything on this thread I am wondering if I am just getting lucky. My TeeDevil has one small "scoop" out of it near the center on the bottom side of the flight plate. Nothing major, visible, but I do not think it will affect the integrity of the flight plate. It did have one slit in the rim from the manufacturing process, but I did not even notice it until it got filled with dirt. The Destroyer shows no structural defect and the only reason I can think it is a factory second is because that it had some minor scuffing on the top of the flight plate. Both had some roughness to the top, much like what you would see on R-Pro or Gateway's SSS plastic, but nothing severe.
It will be another day or two before I get a chance to throw the Destroyer, but I was liking what I saw out of the TeeDevil. If I can get the Destroyer to flip a little like a Pro, I am thinking my Kings may have a little competition for that slot in the bag.