From EEF on we are seeing about 600 to 700kg/hr saving in burn, depending on sector length. The latest ones are outdoing that by about another 150kg/hr. DOWs have also reduced by about 2 to 3t from the original ones.
215 starts in Dec 2013. Rumour has it that there is no rush for the 225 as premium loads aren't that good. So not sure about that one.
I know what you mean about the heresy talk. There are still a few flat earthers over here.
The Don