Next week I'm flying MIA-LHR on a BA 747 in F class. The last time I did this was years ago, (also on a 747,) and there was very little storage for carry-on luggage. The over head bin was barely big enough to stow a laptop or very small bag. By the time I boarded, the front closet was full and I had a heck of a time trying to stow my one carry-on piece in my suite.

I believe I read on BA's web site that they've refurbished their 747s, at least in F anyway. Have they enlarged the overhead bins? I need to know whether or not to board early to store my bag in the closet.

I realize this is probably about the least exciting topic ever posted. But it's important to me. Thanks!