Are we vulnerable to single AOA sensor failures with the MCAS implementation or is there some checking that occurs? I don't see an AOA oscillatory mode as a concern with what I know now. That being said, I would not get in the way if there was a way to improve this while not adversely impacting other aspects of the system/system response.

Yes, I put a large input because I wanted to trigger MCAS function from the level flight condition. MCAS's threshold Alpha is between 4.5 and 5 deg depending on the Mach, and to get the full deflection, we need to have 7 to 7.5 deg of AOA. I don't think this large amplitude gust is likely especially at Mach 0.7–0.8 ranges. If we have a wave of MCAS condition (Wind up turn case) then we expect a stab return position error above the frequency — quick stab reversal is commanded that pilot needs to re-trim with a pickle switch. But I assume, with that kind of an event, pilot probably needs to re-trim the airplane anyways during the manual flight. If this magnitude of vertical gust continues then we would encounter runaway stab that needs to be corrected by the pickle switch or engaging autopilot. I am not declaring we have issues as long as we are accepting the continuous gust case for the first flight and I need your feedback.

Are you declaring we have a problem now? Is there a specific case that you would declare a problem where we might investigate with a pilot in the cab?