If control responsiveness is a problem, why not simply apply curves, The MIG-21 developers recommend a certain setup of the control stick to get a responsive feel that is closer to the real thing. Or am I missing something here? As far as I know it's supposed to be a rather snappy aircraft?
EDIT: found the relevant section in the AFM, haven't found a AMM yet unfortunately. But, given that it's a full hydraulic system it means that the pilot only feels through the artificial feel unit, and it doesn't change the actual angle of the flight control surfaces.