Full specs are
here for the CT 2.0 and Reckoner 102 in lengths between 170 and 178.
Look at the weight: the R102 177 is particularly light for its size and the CT 2.0 178 is the heaviest of the bunch. The R102 have a lighter construction for the same surface area.
Shapes are similar, but look at the running length. The R102 170 should feel shorter compared to the other skis. In general, the R102 has more tail rocker (20%) than the CT 2.0 (15%).
R102 170 has a 16m sidecut radius. All the others are in the 18-19 m range...
Stiffness profile for both bending and torsion are way different. The CT2.0 have stiff tip/tail and soft center. The R102 is the opposite. That is inline with what greg_k said...