I own a pair of the original, 1st year Stockli SR's (198's) that I use when I get the chance to go stupid-fast (or at least my old man version of stupid fast). They are wonderfully stable skis.
They are extremely stiff, and from side-by-side hand flexing, I know they are considerably stiffer than the 2nd year SR's. I never did a side-by-side of them against the 3rd year (last year) SR's, but from casual hand flexing of the 3rd yr SR's in the store, my impression is that the 3rd yr SR's are at least as soft, and probably softer than the 2nd yr SR's.
I don't know which core material the 1st gen version uses, but I may be able to look back in my literature and find out for you. If I find anything, I'll post it.
You are correct that the sidecut of the 2nd gen skis is deeper than that of the first gen skis. Mine are something like 105/73/97 (r ~ 27 m), whereas the tip on the 2nd and 3rd gen versions was increased to something like 109 (if I recall correctly).
One final comment about the 1st gen SR's. When you look carefully, my 1st gen SR's have an unusual flex pattern: The underfoot area is slightly disproportionately soft compared to the rest of the ski, so when you flex them, they assume slightly more of a "V" shape than a smooth, round arc typical of skis like my 10ex's and Explosivs. At the complete opposite end of the spectrum are skis like the Volkl p40 which seem go into a broad bottomed "U" because of their disproportionally stiff mid-section. My impression is that the gen 2 & 3 SR's have a more standard, "round" flex. Needless to say, because of the overall stiffness of the 1st gen SR's, such subtle differences in flex distribution along the length of the ski are very difficult to see.
Because of the slightly softer midsection, one might worry about "folding". FWIW, at 210 lbs, I have never felt anything in their performance to suggest this. They have such a large overall stiffness, this effect is unnoticeable in them, altho I have experienced it occasionally on other skis.
Hope this helped,
Tom / PM
[ November 13, 2002, 10:15 PM: Message edited by: PhysicsMan ]