As best I can tell from reading other threads, CX and SQ do have an interline agreement. CX does have OLCI within 48 hours prior to departure, but whether I can get to a PC and printer before checking in for my SQ flight in MLE is another question. I will be on a live aboard dive boat, so internet and printer availability may be limited.

Well I knew when I asked that the hour connection on 2 tickets was a bit of a stretch. Thanks for your feedback. Better to take the longer connection and have less worries. I guess if I miss out on some sleep, I can get some fairly decent shut eye on my flight from HKG to LHR.