>>955903He has responded saying his kick up to speed is not forward of the bike because of the weight thing, but only once he is at top speed and holding the sprint to the line will he dip forward. He has practiced that "position" a lot lot LOT, so his pedaling is still smooth and not kicking the bike around.
He has trained and tested so that he gaining more aero efficiency at those speeds in that position than he loses in sustained power output.