Replying to How long are your skis?

Recently I have seen lots of comments about the length of Andri Ragletti's skis, and although it is a personal choice, people have lots of different ideas of how long skis should be. What length did you choose and why? Is there a minimum length somebody should ski based on their height? I'm 5'10" and I ski a 183 faction prodigy. I ski mostly all mountain but dive into the park occasionally so I wanted a long ski that would be stable at high speed, but still soft and playful enough to hit some park laps.