Hi Rags,

Shouldn't have much to do with CG, it is all how the air flows over the wing. just like G2, real planes all do this differently. i do not know a lot about this, but washout (intetional twising of the wing) can prevent Snapping, and tapered wings tend to be more prone to snap, but constant cord wings are less likely to snap. you can experiment with some of these settings in G2.