I haven't any issues with G2 in Poser Pro 2014, other than the fact that geografting doesn't work (unless you don't use any morphs that affect the shape/size of the body part that has the attachment).

Have you tried using the Scripts>DSON Support>Transfer Active Morphs command when morphing a figure with GeoGrafts?

Yes I have. I've tried many things, and none of them actually work. I can get it close, but the geografted part always looks like it's a separate mesh, rather than seamlessly connected to the main figure. It would be so awesome if geografting worked in Poser, because otherwise Genesis 2 is practically flawless. It would also be nice if an option to never display the cage could be added simultaneously with any such geografting fix, as I prefer to use Poser's advanced opengl display in lieu of rendering, and the cage is quite ugly in this respect.