Would that punish the countries that don't have the depth of skaters though?
Yes, I guess it would.
(I was trying to respond to the discussion between Joesitz and Medusa, not specifically to your excellent point in post #39
I'm not sure. I am still in the camp that thinks you don't send your 3 best to the same Grand Prix event. They will only eliminate each other. It's better to spread your 3 best over the 6 events so they don't face each other until the final.
Yes, I can see that point. However, I think that consideration is more important when you actually have several skaters with a legitimate chance at making the finals (you wouldn't want Kristi, Nancy and Tonya knocking each other out, or Michelle, Tara and Nicole Bobek.)
In the present situation, I don't think the American ladies will be eliminated by each other, but rather by all of the international talent that is ahead of them.
The other factor is this. I think the USFSA has a lot of respect for the traditions and history of the sport. Skate America pre-dates the johnny-come-lately Grand Prix by almost 20 years and is a prestigious competition in it's own right, never mind the ISU. Skate America started in 1979 after the collapse of the North American Championships due to lack of mutual trust between the U.S. and Canada over judging. Wikipedia:
The (North American) competition was discontinued when the Canadian federation abruptly cancelled its participation in the 1973 event, which was to have been held in Rochester, New York. The CFSA cited problems with the judging (which tended to favor the skaters of whichever country had a majority of judges on the panel) and the reluctance of top skaters from both countries to participate in an event immediately before the World Figure Skating Championships. In fact, the CFSA was at that time already planning to hold its own international competition, the first Skate Canada International, in the fall of 1973. This event would be open to skaters from all ISU member countries and use international judges. The USFSA established its own international competition, Skate America, in the fall of 1979.
The point of Skate America was to kick off the United States figure skating season with a parade of U.S. champions, with a sprinkling of invited international stars. (The U.S. champion almost always won. Scott Hamilton won the first three, followed by Brian Boitano. Todd Eldredge won five in a row and Michelle Kwan won seven in all.

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I think the USFSA still likes the idea of a Skate America that showcases the best U.S. skaters. This is the only event, except for U.S. Nationals, that attracts major television network coverage. Never mind the Grand Prix Final, not even the World Championship attracts that kind of interest, historically, in the U.S.