What a nifty thread! But if you go back to the very beginning, what REALLY needs to be done when you line up? The answer to that question should drive the final outcome. If it is as Pitts2112 suggests, not alot (I have to say I'm on his side here), then the answer is not alot. But I'm sure some aircraft (although I'm at a loss here as I can't name any) have to have things done just before they roll and when that is the case, the manufacturer's documentation will provide the answer.
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