Paul, I have two BA-specific questions, if you don't mind.

-Does BA apply the £30/segment fuel surcharge to nonrevs/ZED?
-In your experience, is BA a stickler about routing for nonrevs? IE, if I get a ZED pass LAX-LHR (Zone 7), would it be possible to use it on SEA-LHR (Zone 6)?

Much thanks! -Sam