FQTV and FQTS on a BA booking

[memesweeper]

Datapoint for anyone planning to exploit existing status whilst crediting elsewhere. I had a recent trip, booked conventionally on the BA website. I had reason to call BA about something else, so asked for

FQTV: Alaska Airlines
FQTS: BA

to be set. A few hours later I checked on (I think) the RAM site and saw two frequent flyer numbers. I checked in, used the lounge, and waited to see what happened.

What happened, quel surprise, was my flight was credited to BA Club for a miserable return of Avios and new TPs, and nothing appeared in my Alaskan account.

Not going to complain about this, as the credit to Alaska would have been negligible too, but I will be not be bothering with the approach again. I will try and switch frequent flyer number entirely for long as I hold BA status, but only after seat selection and perhaps a lounge visit.