@SkiJay - yes I know that you have to compare FD,FL,DFT and not the marks on the fin - however I notice that the 2 fins are not exactely the same - and strangely enough I feel the ski act the same when I align the markings - which make a huge difference in FL : I now ski FL 6,97 (feels like the old (slightly different) fin on 6,930) and the ski works perfect - new PB yesterday for the first time in 25 years - Im happy - love the new blue ARC.