Oh forward of centre on a park ski is great. I dont think it would be nice on a symetric ski, but the ghettos might be good for it. I did my Ar6's +2cm forward, and they were so nice to ride switch with.
However, 2 cm forward is QUITE a change, maybe try 1cm forward,a dns ee how that feels. You will get the added tail length that your after, and the feel for carving switch.
Its a gamble, you could love it, or hate it. I would try 1cm forward.