You don't need a mens board. If you need a gnarlier girls board look at the Ride OMG, Flow Myriad, Nitro Cheryl Pro, Arbor Cadence is basically the womens Westmark...
There are some really good womens park boards out there. In fact Rides hybridrize tech was debuted in the OMG last year (and the limited release DH2's, but yeah). So especially from Ride and K2 womens boards are far from neglected in tech and build.
i know i don't need a men's board, it's just that i haven't found a girl's board that fits both my needs and my boot size like the proto does. i've found girl's all-mountain boards and park boards i loved, but not a one that could do both the way i want my next board to.