[Note: from subsequent discussion I take this to read “with full forward SS and with the system gains set at their 330 kts values”]
Actually that was really what I was trying to determine...
For a particular ADR related malfunctions, did I really get a simulated change in gains.
So first step was to check elevator deflection in Normal specifically at 330K using a full ND SS input. The logic behind checking with full ND SS as opposed to some intermediate position was that I could be sure I was duplicating the exact same SS input in Alternate. I noted the elevator deflection as a baseline for FCC commands at 330K.
Next I inserted the particular ADR malfunction I wanted to check as resulting in fixed 330K gains.
Then I applied full ND SS at both 330K & 200K, expecting to see the exact same deflection as in Normal at 330K. I indeed did. Then I checked full ND SS at 200K in Normal, expecting to see more elevator deflection with active gains. Once again I did.
I drew from this that indeed the particular ADR malfunction was also faithful to the change in gains.
Maybe my logic here is flawed.
The specific amount of elevator deflection observed was just an offshoot of the purpose of the exercise, but it brought other questions to mind. But I doubt I held the input for the up to 7 seconds as mentioned earlier, and the validity depends on simulation fidelity regarding the flight control system. Maybe not enough time for 'gee' feedback to the FCC's if in fact or to what extent they use it with gains fixed?
More work to do. I have been surprised (educated) before at various control surface deflections commanded by the FCC's in particular circumstances. Rarely do you see full control surface deflections for full SS inputs. And of course, day to day, actual flying you will probably never see full SS input. Which is a good thing.
edit: BTW if 9 degrees of NU elevator commands a delta gee of +1.5 (2.5 absolute) at 260 knots, I would think it would not be a stretch that 4 degrees of ND elevator (1/4) could command a delta gee of -2 (-1 absolute), 70 knots faster at 330K.