The heavily western route for SAA was why they were prime candidates for the SP version. Over many years, Ilha da Sal in the Cape Verde islands was their splash and dash + crew change for many years. When the extended range versions became available, the island lost a lot of good custom! Wikipedia gives details of the SAA routes
Amílcar Cabral International Airport has the IATA code SID, which has led to problems for some pax in the past!