Gaon Atzum –
Sad to say, 99% of the wedddings I go to have simple circle-dancing with the occasional over-under teams (which rarely work beyond the 3rd or 4th pair). Once in a while, I do see some very coordinated bochurim, who either have natural grace or do lots of practice. (The girls side of the mechitza is much better, but they take lessons, so that’s not a fair comparison).
One shtick you did not mention, which I saw once and thought was a great idea, was 6-7 of the kallas friends borrowed hats and jackets (not props, the real thing) and went into “dance” around the kallah. (If there are any girls reading this thread, consider implementing this one..it was a real winner)
Since I’m rapidly approching “middle age” I try to stick to the sidelines, but the talented ones are fun to watch. But I must say, the analysis you gave must have taken hours to write (and very well written, I might add).
You should contribute more often! (just please pick a subject I can comment on:)