Update on the new Spur. Remounted mine from -2 to the line. Going -2 was definitely no bueno. Now the skis feel much better balanced and have better tail support. Incredible fun to ski in powder but still lower speed limit than the old Spurs in anything hard and on the piste.
I'm not exactly sure if the time of skis > 120 mm waist just didn't expire with the snowpack of the recent years here in the Alps.