Second question being, if the answer to the first is "because being over the centreline of the BB is more biomechanically efficient", "why don't we sit close to the centre line all the time, instead of sitting behind that point and only coming forward under power".
Second question being, if the answer to the first is "because being over the centreline of the BB is more biomechanically efficient", "why don't we sit close to the centre line all the time, instead of sitting behind that point and only coming forward under power".