Since Karhu and Line use the same factory, three of their skis share moulds (Jak/Mothership, Ruckit/Maverick, and Rox/Darkside). There is a highly faveourable review of the Karhu Rox on the following web site (scroll down to the 2nd review): http://www.telemarktips.com/SkiRev03_04.html
A lot of people ride the Ruckit and Jak, which are marketed by Karhu and are identical to the Mothership and Maverick, respectively. I still have my Ostness Dragons, and I have seen people riding Line skis.