I wasn't trying to start an argument about the reason for the name of the Double Reverse Spin. I was trying to make the point that there are many examples of changes in the way we do dance figures. The story I gave is from an instructor (ISTD Fellow) with many years of teaching experience. But O. Z. may be right. (The instructor who taught me the Double Reverse liked to have his students do it twice. He said that it wasn't hard to sort of do the Double Reverse, poorly, but it was nearly impossible to do it twice in a row without using correct technique.)
Another example both of differences in technique and possibly spurious stories is (American Style) Rumba. The basic movement is the box. Both BallroomDancers.com and DanceVision (among others) start with the leader moving his left foot forward (S). But many students have learned to start with the left foot moving to the side (the first Q). And many of these students have heard the story that Fred Astaire Studios started teaching it that way to avoid a lawsuit from Arthur Murray, which starts with the forward step. But there is a very entertaining old movie "short," called "Cuban Rhythm," that shows up on television (Turner Classic Movies shows it on U. S. television) from time to time. In that movie two professional instructors show how to dance the Rumba box, with credit given to Arthur Murray. And they start with the side step!
If you enter a competition, you have to follow the rules. But in social dancing, I think you can follow the advice of another instructor I know: "There are no wrong steps in dancing, just variations."
