So there is a trigger point in time (midnight) where an unsold seat next day goes from a valuable asset to a cheap empty seat. My strategy needs refining obviously but often buying fares fairly close to trips, and trying to get home as early as possible - but need the flexibility to stay away depending on site conditions etc. Not sure I’m dedicated enough to do that midnight thing though. I’ll have a go next week - not so much pressing need to maximise SP’s atm so can adjust strategy. Thanks all for info.