1- 8 1M dances down centre and casts up behind 3L, crosses over and casts up behind 2M back to place
9-16 1L casts behind 2L, crosses over, casts down behind 3M and dances up to place
17-24 1s dance in and cast 1 place, lead down between 3s and cast to 2nd places
25-32 1L dances ½ Fig of 8 round 2s as 1M dances ½ Fig of 8 round 3s, 1s full turn RH, dance out and round 2nd corners, pass RH in centre
33-40 1s dance reels of 3 on opposite sides starting by giving LSh to 1st corner, 1s cross to 2nd place own sides
(MINICRIB, Dance Crib compiled by Charles Upton, Deeside Caledonian Society, and his successors)
The usage came from The Blue Riband, a prize awarded for the fastest crossing of the Atlantic Ocean by passenger liners-and prior to that from Cordon Bleu which referred to the blue ribbon worn by a particular order of knights.