Replying to Market griffon weight vs fks 140 weight

ok so here's the story I've got a pair of on3p filthy riches with marker griffons on em. The combined weight of the two is 11.916 pounds (skis - 7.758 lbs. bindings - 4.158 lbs. or 1890 grams for both) my other pair of skis are moment vices with rossignol fks 140's the combined weight of them is 12.202 lbs. ( skis - 7.45 lbs bindings- 4.752 pounds or 2160 grams) this dosent make sense to me because the vices feel so much lighter. Did I do my math wrong? I got the information from both official websites, marker specified that the griffons weighed 1890 grams for the set. Rossignol just said 1080 grams but did not specify that it was a set, is that how much both weigh? Cause that dosent seem right either. Im asking cause I'm purchasing a pair of surface outsiders for park and I want to try to get lighter bindings at the skis themselves weigh 8.8 pounds. So my question is what weighs less fks or griffons