source: 1973 USAC/RS American Roller Skate Dancing Part II
Source: Special thanks Bill Moore of Portland Oregon, for permission to share his diagrams (hand drawn in the late 1990's) showing how the border progression is executed.
Note: After finishing the 24 steps the first time around the rink, continue at the #2, complete those and continue at the #3. When the third sequence of 24 steps is complete, think of the first diagram turned upside down, and continue at the #1. This is how national champions and their coaches have found that the dance fits and looks best when placed on the rink surface. Other ways are possible, of course.
source: 1953 ARSA Amateur Skater's Hand Book 2nd edition