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