Yeah sorry D, but what your G sensor has been fooled by is obviously some compounded inertial effects and possibly the location relative to the instantaneous spin centre. Not saying it wasn't measured though. As mentioned earlier, I believe the lateral G sensor will be sensing a lack of rate of change of G and so dial out front drive, but from steering wheel position, differential wheel speed and a change in lateral G that doesn't fit the parameters of the other elements it will determine traction loss and crank in some front drive. I think that will be the key to the Attessa as most closed loop control systems work better on rate of change that a simple integer value function.
It's well known that the friction circle is actually more of an ellipse and is lower in side traction (due to tyre construction limitations) than in front rear, which is also different due to CoG (dominated by engine) location. Now I hope SK doesn't come and tell me I've blown this theory lesson as this is his bread and butter. So my point is you should measure more front/rear G than in any other direction during controlled driving.