I took 3 Rocs (New KC, used KC, and slightly used bottom stamp DX) out to the course (Indian Hills) to get an idea of where they are in a Roc cycle. I found that the used KC is probably #3 Roc possibly a 3.5. When thrown well at my lower power (220-240') it's straight with slight left but forward finish. The new KC is likely a 1.5/2, straight with a harder/dumpier finish compared to the used. The DX was a bit of mystery, it's used but not much, it seemed to have a close flight pattern to the New KC but it was always farther by 15-25'. Maybe it's me not being able to replicate a close approximation to the same throw but the DX seemed to be a bit faster. I still have a 2 other Rocs to take out and see where they will fit in.