The DPS website says "single-radius underfoot rocker". Underfoot rocker suggests 100% rocker. But in the specs it says 630mm tip rocker and 440mm tail rocker which totals 1070mm (107cm) total rocker, but the skis are 190cm. Are they 100% rocker or rocker/flat/rocker or what? What do they mean by "single radius underfoot rocker"? I already emailed DPS and they didn't respond.