At the AHS talk IIRC they said they didn't fly the fairings because they had already met the goals and the company objectives moved the focus to raider. I believe they also said they would expect a speed increase of15 kts, same increase as documented here:
Sikorsky X2 Hits 250-knot Target, Setting New Record | Aviation International News
It would be odd if they designed for 1G at 250 S&L. That would be dangerous. Would a big company like Sikorsky really take a risk like that?
Can you publish the math that says 12K lbs is the limit? Or will you get in trouble with work? In case you work at Sikorsky, I don't know.
Bryan