This is a very, VERY, VERY small saving, but...
If any transatlantic types have both a US and UK credit card, and want to spend ££/$$ on Miles Booster, then go for the US credit card.
The current GBP:USD exchange rate is about 1:1.68 whereas the GBP:USD pricing structure for Miles Booster is 1:1.6
Example: LHR-EWR round trip = 6,916 base flown miles. Redeemed by VAA at double base flown miles (13,832)is going to cost you either £138.32 or $221.31 depending on which currency you opt for.
...but $221.31 is actually only worth £131.73.
A grand saving of NEARLY SEVEN QUID!
Thank me later...
NYLON
If any transatlantic types have both a US and UK credit card, and want to spend ££/$$ on Miles Booster, then go for the US credit card.
The current GBP:USD exchange rate is about 1:1.68 whereas the GBP:USD pricing structure for Miles Booster is 1:1.6
Example: LHR-EWR round trip = 6,916 base flown miles. Redeemed by VAA at double base flown miles (13,832)is going to cost you either £138.32 or $221.31 depending on which currency you opt for.
...but $221.31 is actually only worth £131.73.
A grand saving of NEARLY SEVEN QUID!

Thank me later...
NYLON