As anyone tried F on this aircraft and do they know the difference between F and J? The F cabin is smaller than on the 772 and the seats appear to be in the same configuration.

It looks like the trend for business class is to move the standard to almost first class levels. When BA were rolling out their original CW flat beds, other airlines were still rolling out cradle seats or slopey 'lie flat' seats.

We'll see how BA copes with the competitors finally catching up.

I think BA offers the most important aspects of a business class product. As BA have a higher density layout they can compete on price, at the moment they don't need to as they're still one of the few airlines to guarantee (barring a few disappointing exceptions mostly with Moscow) a flat bed on so many routes, but once more airlines roll out their flat bed products BA are in a better position to compete on price.