A340-600 Performance

[minibus3]

Hi all,

Wondering if anyone can answer a couple of queries I have, re the A340-600 performance?

Firstly, is there any truth in what I've heard, in that there are normally noticeable oscillations in the cruise?

Also, with regard to the efficiency, how does this compare with the B773ER?

Any answers appreciated.

Thanks guys,

minibus3