Extending the above example, if I am flying WT+ on LHR-SYD with a stopover in SIN, if I find MFU availability on LHR-SIN, I assume it cost me 20k miles (25% of 80k). However if I then later see MFU availability for SIN-SYD would it cost me another 12.5k miles (25% of 50k), even though it would only be a total of 25k miles (25% of 100k) if I was to MFU all the way in 1 go? It might not seem like much but I'm looking to MFU 3 of us both ways, so it would be 45k miles difference!