Stu, I did a little research to see if my memory was incorrect. It turns out I was pretty accurate. Read this article and particularly read the segment titled "Bode Miller & Mainstream Acceptance".
https://www.skiinghistory.org/history/evolution-ski-shape
The whole article pretty much refreshes my memory. From the 70's to the early 90's we ALL ski raced on slalom skis that were skinny and narrow at 203 cm length (some at 200 and few at up to 205). Virtually nobody would be caught dead on a race ski less than 200 cm. GS race skis were 208's. It is true that we started to use fatter GS race skis that we called "fatty's" in the later part of the 80's and early 90's but the lengths were always 205 or longer for GS. Yes, some recreational skiers started to experiment with "shape" to make learning easier, but it wasn't ever mainstream. Salomon came out with their capped skis which felt like the biggest new wave in the late 80's early 90's and they stopped referring to size in length, but the skis were essentially similar in sidecut and length. But snowboarders were showing us in those days that they could make deep, carving turns on boards with a radical sidecut and short length.
Then Bode came along, with the help of K2, in 1996 Junior Nationals and the results broke the door down. Actually, my niece started talking about Bode well before this event. She went to Carrabassett Valley (Ski Racing) Academy and spent 3 seasons with Bode during her high school years ski racing all over the northeast and riding around in vans from event to event. He was basically the most unconventional skier in the group and a complete wild card with amazing talent. My niece talked about him all the time - it's a small group of teenage kids traveling in a small pack from ski resort to ski resort on a full-time basis, doing homework and study groups on the road and ski racing by day. I remember her coming home in April and saying we wouldn't believe what had happened at Sugarloaf at the Nationals and how ski racing was going to change. I'm sure the World Cup racers were already on top of this change, but the impact seemed almost instantaneous.
During the season in 1996, I bought a new pair Fischer slalom skis at the usual length, 203. I used them a few times that season and then never used them again. In 1997 early in the season (December), I went up to Killington for a recreational race and used my regular 208 GS skis. I was a little amused to see just about all of the usual competitors with new skis that were shaped and only 185 cm, typically. Guys that normally would beat me by less than 2 seconds for a race were up to 10 seconds faster
per run! Several of the women beat me, which
never happened among our regular group. That happened on Saturday, so that night I went to the ski shop and bought a new pair for myself. Sunday, I was able to restore my confidence, by pretty much getting back to normal. Granted, I didn't focus very much on ski tuning before the Saturday race so my old skis were in bad shape to begin with, but to take about 8 seconds off per run on essentially the same track from one day to the next, on skis that I had never even skied on except for a few warm up runs early in the morning, is a revolutionary change for sure.
Following those events in 1996, ski shops put their entire lines of conventional skis on the fire sale racks and sold nothing but shaped skis from the top to the bottom of the lines. It really was a retail revolution at the end of the 90's that changed the sport drastically. What followed were completely re-vamped lines of specialty skis for all-mountain terrain, skis for terrain parks with twin tips, racing ski specialties, powder ski specialties. Boutique ski manufacturers started to pop up all over. If you skied in the 70's, 80's and 90's, what you see in the ski shops now is virtually unrecognizable unless you've kept up with the innovations. It truly was important to the sport. I can see how this relates to sail boats.