So my rollerboard i'm taking with me is actually at the limits of BA's size guide - are the 737 bins really that small? Never have a problem on AA, so i'm perplexed by the comment in the article linked above by WHBM. I won't be checking it in either (1h connection, same ticket). Happy to hear comments from people who have flown on it.
..... Update.
Well, just tried to move from a Jettime flight, to a BA mainline flight (1 flight earlier), and was told no.
GGL said no.
Gold line said no.
Supervisor said no.
Trying to charge me £100.
At least BA are consistent