A well known bobbed-course of Stedman Triples is S,L,Q. A few weeks ago I realised this also works for Cinques if you call the 11th S,L,Q but add in singles at 1 and 14 (with the 11th unaffected in 0E). Why does this extension work? Is it entirely obvious? If so how does it extend to 15, 19 etc? Percy