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Thread Starter 
DISCLAIMER - As the distributor for Kneissl in North America, I don't want to have this considered a formal review, but information for those that are interested.

The ski: 

The 191 cm Rock Star is new for 2010 / 2011, and has a much wider profile than the other Rock Star.  Dimensions are 145-108-129.5 with a 26 meter radius and 65 mm / 35 mm rise in tip / tail.  It is cambered ski with a slight rocker (starting about 35 mm from the tip and 15 mm from the tail).  The production version will feature the traditional Kneissl construction (full-length wood core, fiberglass, titanal layers).  The prototype did not have titanal layers, hence I would expect the production version to be slightly stiffer and stable at high speeds. 

Skier profile: 

Ski school trainer, 56 years old, can turn left and right.  Generally I prefer frontside and / or all mountain skis.

Testing conditions:  Groomed (packed powder), blue terrain, with some chopped up snow on the edges of the available runs.

Ski performance: 

The ski was remarkably versatile as I was able to make long radius turns with ease, and was responsive enough to allow shorter radius turns on the groomed terrain with minimal amount of skidding during the initiation phase (the slight rocker probably helping in this regard). Grip was excellent for a ski of this type.  While some powder skis are built with less sidecut, I felt the 26 meter radius was just right, and with the upcoming version having two sheets of titanal it should provide plenty of power and stability for those big-mountain skiers who prefer larger radius turns and straight lining.

No opportunity to try the ski in powder, but it rode through the available chopped up snow (and small bumps) quite easily.

Will update when the production version is available.