Hi again, David, I found out that I actually had brought my notebook with the notes from our Suduiraut tasting to the cottage, so I could check my impressions.
The 1983 was indeed present at our tasting, even in the shape of two half-bottles(!) Interestingly, they were rather different, unfortunately none of them were very too good. The better of the two had a rather deep orange-yellow colour and a mature, slightly tired but OK nose with notes of dill and bread.In fact a bit similar to old champagne. Sweet, round and evolved with fire and bitterness. A long, fiery, burnt aftertaste which was OK but a bit raw. The other bottle had a lighter colour and an almost youthful nose, vegetal, grapey and with a whiff of sulphur. Acidic and spicy taste, very fiery and rather lean and charmless. Both bottles were evidently far from the charming ones you have been able to enjoy. I suppose they were from ordinary bottles? Maybe this illustrates the different developments of wines in different sized bottles.
The other vintages we tasted at the vertical were:
1976 - nicely creamy mature wine with dried figs, nuts and varnish. A bit dryish, woody finish, but still charming.
1988 - fat and concentrated. Fiery and a bit dominated by alcohol. Touch of cyanide. Powerful but lacking zest. Still rather good.
1997 - deep and surprisingly developed with honey, wood, botrytis and mushrooms. Some ethyl acetate. Sweet, spicy and broad. Loads of honey. Slightly thin aftertaste.
1989 Crème de Tête (the cuvée prestige), from magnum. The clear winner of the evening. Deep and mature with loads of honey, smoke and bread. Sweet, oily, broad and chewable taste. Very creamy and a lingering, sweet, slightly fiery aftertaste. Very good. Our host played us a trick by serving this wine both as the first and the last of the wines we tasted (all wines are poured into and served from caraffes). The first one got much better votes that the second one, which either shows how the impression of a wine is affected by what one has tasted before, or that we are not very skilled and consistent tasters. I prefer to believe the first explanation...

Cheers and have a good vacation together with your 28 bottles of wine!
Anders