Replying to Thoughts on mounting position for Salmon rocker2 100

NS I need some help determining where I should mount the rocker2 100s.
I have only ever had a symmetrical park ski and now I'm moving to a 129-100-122
don't know if I should mount them center or a bit back…

length is 178 center is 88 recommended is about 6cm back from true center

Id like to take these all over the mountain but they still will be mostly for park

if anyone has skied on them or own a pair and could shed some light on them that would be greatly appreciated!