answering a couple of things:

TravelLover, thanks for the mileage bump! You're right, with the 500 mile minimum that's a jump in mileage.

Mr.Airport, you might be right - there's also a rule on NWA.com that says 'itineraries with the same start/end point within 4 hours will be subject to the same Turbo Miles percentage'. Hopefully they overlook that one but worse comes to worse, it'll only be a 25% boost. Nothing I can really do about that.

- Sameer