I have done it three times on the Star Alliance, so I would like to know how is life with the Dark Alliance . Two more questions: Are the rules for these fares published somewhere? What are the airlines you propose to stick to? And maybe I am too stupid (iudex non calculat): How does the spreadsheet produces OW fares other than business class?

Assuming for a moment I would start in South Africa: Would this allow me several stops in Europe, before going on a great circle and returning to South Africa via Europe (or skipping this segment)?