Fable was launched on June 9 (for 72 hours), then K3 launched on July 16.

Timeline wise, Moonshot had over a month to post-train K3 on Fable distilled data, which is more than enough time.

So in 3 days they were able to distill enough data to make a significant difference in the K3's performance? Without triggering any limiters when there's already suspicion of distillation? That's still a heck of a feat. Like the bank robbers who were able to keep coming back to take more even though the bank was aware they had gotten robbed recently and had the resources to put sophisticated security systems in place.