Replying to Center mounting....?

I ordered new skis which just arrived yesterday, 4FRNT YLEs, and I noticed something which may or may not be right. They're symmetrical, so they're supposed to be center mounted, yet when I flip one ski around, it seems like the mounting line is ~1 cm back, so there's 2cm from line to line. If it was actually a center-mount line, wouldn't it be in the center, or am I missing something?

Also something else peculiar I noticed, on each ski, one edge wraps around the tip and tail while the other is only on one side. Sorta odd.