I have a pair of 176 race stock Atomic LT12 GS skis.
They too have tips that seem to rise a bit.
When I try to find the center of the running surface by flattening them and using a piece of paper, the results are screwy.
The tips are so soft and high it is hard to see where the running surface starts.
For whatever reason, these skis are the fastest I have ever seen in a wax race.