SPP is about as variable as the length of a piece of string; at the moment you can pick any number between ONE and 853. Next thing you will be claiming is that the buses between NHT and LHR will require empty seats for the non-existant passengers.
OK, that's it, I give up.
I honestly don't know how to have a meaningful debate with someone who appears to display zero knowledge of how the air transport industry operates.
You've beaten me into submission, you win.
