@MissySki - I have tried the Sheeva 11, but spent a lot more time on the 10. And haven't skied the 9. But from my understanding, the 9 is less rockered and has more metal throughout the body of the ski to make it well rounded and improve its hard snow performance. Mount point sits a little further back. And the 9 is as heavy as the 10 in the same sizes.
The 10 adds more tip & tail rocker, softens the extremities, and bumps that mount point forward. I wrote a review of the 10 as part of a reviewer application process that I'd be happy to share. Essentially, I wish I owned this ski as I was learning to ski off piste. Versatile enough to be a OSQ, but it really excels a tight turns off piste. I could ski at slow, conservative speeds, but do so with connected turns and a fluid style. They definitely ski short (I first tried them in a 164 since I was looking for something longer than my 162 Pandora 95s and they felt way too short, and I liked them much more in a 172. Today, I wish they came in something like a 174 or 175, and I usually land on skis around 170). Huge sweet spot and very forgiving. They definitely reward you for getting more forward and into a confident stance, but they're still plenty compliant if you're in a hesitant stance with your weight back. They don't like to hang out in the fall line. All the construction elements lend themselves to easy turning, and when you get them in the fall line, they just keep turning and cross the fall line. Soft tips plane well in fresh snow, while the weight and metal in the midsection helps mute out vibrations if you're in crud or get tip flap.
The 11 similar to the 10. But the radius gets longer and the mount point pulls back a bit. They remove a little bit of camber from underfoot. It's more amenable to different sized turn shapes and hanging out in the fall line.
Definitely think it's a low-risk starting point if you ski the 9 and either option is well rounded enough to make a good travel ski. I'd say that the Liberty Genesis 106 or an outgoing clearance Yvette Alchemist would probably be 2nd tier recs if you love the Sheeva 9.
^ Now I need to try this.
I agree with @elenmac; SKI magazine has historically left a lot of skis off their tests, especially those by the smaller companies.
Another ski I'm dying to try is the Line Blade. It's a weird looking ski, but it gets terrific reviews all over the place. My DH has the men's version and absolutely loves them; they really look like a blast, particularly for groomers.