'Gostan' had this to say about a page-and-a-half down:
"I had the opportunity to demo the new Atomic SX9 Supercross in a 170 yesterday at Wachusett Mountain. I am a level 7-8 skier - 5'9 - 180lb - been skiing 17 years. I loved these skis. They are lively, fun and still have enough edge hold to deal with our typical New England conditions. The snow conditions were groomed packed powder. These skis do like to turn in short and medium carved turns. They go on edge effortlessly. They are wondorous in the bumps, and I am not a good bump skier. I took two runs on the stiffer SX11 in December. Personally, the 9 is a more versatile livelier fun ski. The 11 holds the edge better, but takes more effort to move around the mountain."
I myself would LOVE to read a comparison between the SX9 and the GS9!