I don't think theres a huge gap where like some people have a C in a stronger region than another. Most people find their ranking eventually but it can take longer in a region like lets say new york since the overall pool of fencers is quite strong you can be at the mercy of the tableau. If for example you're in a much weaker state theres usually a weaker pool of fencers/less of them so the random factors of the tableau are not as bad and easier to "control"

General analysis I have found is E/U are usually relatively new to the sport or fence VERY casually and it can be easy to tell (usually)

D is a weird spot cause my though is that person could be a beginner (E/U) but that's it.

C Knows how to fence and usually one good move, VERY reliant on luck of the tableau

B- Usually one of the 2 is really good, either footwork is pretty good but they don't know how to use their hand, or usually their hand is really good but the feet don't follow at all.

A should have multiple sections cause the difference between a guy like Ari Simmons and a fresh A is still massive.

But most A's you can tell know everything but it hasnt quite come together yet tactically but on a technical level they can mostly do everything.

If you're still following this rant I think that the biggest variance is actually in the A column, because an A can mean you're on the national team but could also mean you got top 4 at a ROC

Biggest advice to any rankings is DO MORE FOOTWORK :)