Replying to Park Ski Advice

I just broke my 08 punxs and  I'm looking into getting some new park skis. I can get a good deal on 177 Vokl Walls or 171 4Frnt Switchblades. I'm bit worried about the Walls being too stiff (I'm 5'9'' 145 lbs), especially coming off the punxs which were fairly soft. I haven't found too much information about the switchblades thru the searchbar so I was hoping to getting some input on that too. To add some more info I ski mammoth, the biggest jumps I'd be hitting are ~50ft, and these would be for only park.