This is something that Salomon was ahead of their time with their "power rating" (PR) of skis. For those of you who have only been skiing since the advent of shape skis, here is what Salomon did when they first introduced skis back in 89. They offered a PR of every ski. PR went from 5 to 8. our PR was based upon (IIRC) weight, (not height, a ski cannot feel how tall you are), agressiveness, and ability. This number was rated on every ski. Their skis (at that point) didn't have a conventional length (in cm) listed on them. I was a PR8, I would ski every model in an 8, so I skied the 9000 1S GS in a 212, the 9000 2S SL in a 205, the 9000 3S J-turn SL in a 203, the SuperForce 3S in a 198 ( a 9000 3S foam core, one size down). When they went to the 9100 series, the skis actually dropped 2-5cm, but PR numbers stayed the same. This made ski length choice much easier, you skis the particular length according to the type of ski and what it was designed for.
Tomorrow we talk about Salomon Volume boot fitting

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I think Peter might have still been involved with Salomon at this point, maybe he could add to this.