I am switching to twin tips.  I have rosignal vipers right know and want more ability in the park.  I enjoy going fast.  I am wondering how the 05 PEs are? some say they are heavy.  Are they a fast ski and good all mountain as well.  Quality? I plan on using it for mostly all mountain with like 30 percent of my time at the park.  I also am wondering about how well they turn. since they are twin tips. Any opinions or suggestions