Replying to Kartel 96 Mounting Point

I just copped a pair of 176 cm Kartel 96s and am trying to decide where to mount them.
I've looked online and used the search bar for newschoolers. Most of what I found recommends the recommended line or +2 cm from the line.
I just want to know where the recommended line is in relation to true center.
If anyone has any suggestions on where to mount them, here is some info bout me.
5 foot 8 inches. 135-140 lbs. (been tryna gain weight for a while. still strugglin...)
Looking to use 70% in the park and 30% all mountain. Ski mainly east coast, but I will take these skis out west 2-3 times a year.
Mounting with Look Pivot 15s.

But again, someone please tell me where the recommended line is in relation to true center.