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). Figure and clothing works very well.

AMD Phenom(tm) II X6 1090T Processor 3.20 GHz
8.00 GB RAM
Windows 7 Home Premium 64-bit
EVGA Nvidia GTX 760 (4GB)

Another thing that happens with clothing is that the morphs get out of sync, in which case there is a provided Python script called "transfer active morphs". This script is automatically installed alongside the DSON Importer, and is available directly from the script menu in the DSON Support submenu.