Jetdoc -
Thanks for the image, that looks like a nice beefy stick with redundant linkages. I will be willing to believe that the Airbus engineers considered turbulance and saw to it that the stick is dynamically balanced against side thrusts, *when sitting there untouched*.
Now: Is there a procedure for dynamically balancing the sidestick *taking into account the mass of the PF's hand and arm*? Arms and hands of PFs (and PNFs) are also subject to lateral accelerations in turbulance. If the hand is coupled to the stick, is it not possible that the moment arm of the hand and arm might couple unintended movement into the stick?
If there is a procedure to balance the stick *with hand and arm attached* against spurious accelerations, then this is not a problem. Otherwise perhaps it could be in some cases.