Replying to Where should I mount my Marker Griffon bindings on my 2014-2015 Al Dentes?

The season is almost here! That is why I am asking for your feedback on where I should mount my bindings on my 2014-2015 al dentes. The factory recommend spot says to mount them -2.5cm from the actual center but I ski 95% park so I was wondering if I should just mount them dead center or in the middle of the center and the factory recommended spot (-1.5). Let me know what I should do.