Have a flight this fall AMM-LHR-ATL. AMM-LHR is sadly only Club Europe (long trip for that), but LHR-ATL says it is on the 787-10 (we'll be in Club World). We paid for seat selection on the AMM-LHR flight to avoid the tight legroom, but is it worth it on the 787-10? I'd much prefer a window, but wondering if it's worth the $125-150 extra per person, unless there are definitely seats we should avoid or seats we should try to reserve. Any advice is appreciated, since I've never flown BA. Thanks!