Replying to Armada ar7 mounting question +k

So how should I mount my ar7's? My last skis were non-symmetrical, like the ar7's, and I had them just a tiny bit back from center for most of their use. I've heard a lot of opinions about center mounting ar7's, but I just want to know if center mounting them messes with the flex pattern and hinders all-mountain versatility. I would basically like the setup that would let me do park and all-mountain the best. Would -2.5 be the way to go? Thanks for the help