[bongodriver]

Originally Posted by CaptainDoggles

No matter how you set up your curves, you'd still need to reduce pressure on the stick to avoid the aircraft tightening up the turn by itself.

That right there would go a long way towards the correct "feel".

You just don't have the evidence that that is actually what happened for a start, and even if it did happen it only would have happened when the CoG was at the point it created the 'slight' instability i.e. with a full fuel tank, so the effect you talk about would be dependent on fuel burn, the less fuel in the tank the lesser the effect.