Prince of Dzun--. .The correct terminology should be IMHO, "rotate".. .Many it would appear(especially in the UK) have a fixation about screen height. This is all well and good, however, in order to achieve controled flight, one needs to keep the blue side UP. The margin of error at V2+10 is MUCH greater than at V2.. .Reference the AA DC-10 accident at KORD a few years ago. In simulator reinactments, those pilots (very few actually) who put the nose down to achieve flying speed did not roll over on their backs. If you cannot maintain the blue side up, screen height has little significance.. .These are my views anyway, and they have served me well for over 35 years.