Originally Posted by
mec72
So it really comes down to a question of whether I want to pay a £6 premium for extra 35 TPs - yes, I do

This must be the best 'incremental benefit TPs' vs cost out there. ^
Out of curiosity, what is the cheapest base cost for the underlying economy fare (cheapest pair of destinations?) (Though I have a feeling that a train to NRT might cost more than this TP run

)