I own a pair of G30s (188), skied several days on the G31s (188), and own a pair of Vertigo Motions (01-02 Model, 184), and the detailed description in the prior post is accurate.
I tend to gun groomers or go off piste, so I like the stiffer models better, but the softer flex does make the '01 Motions easier in bumps. Also, the flex/shape helps with short turns/slow speed. If you're shorter, lighter, or less aggressive, you may want the softer flex.
We're talking relative degrees of excellence, the Vertigos are very good to great skis. Anyway, the new model has the newer shape, but a flex that's closer to the G31s, which is a nice, schweet spot to be in.