Thanks guys.
Mutt, as I understand the improved V2 technique, it is available only where the aircraft is WAT or climb limited rather than field length limited.
I believe, though don't have any definitive document to substantiate it, that the UK CAA do no permit the assumed temperature take off to used with the improved V2 climb. Don't know about JAA or FAA. Although, I can't think of situation where you would want to do that anyway - but it's early and my first coffee hasn't kicked in
