That's once you set the bank angle and are turning. But in order to initiate the bank you need to apply a torque (via ailerons). If you sit at distance d from the axis you'll experience an acceleration due to this torque changing the angular velocity (four times per turb: once when the banking is initiated and the second time in the opposite direction when the desired bank angle is reached; then the same thing reversed when existing from the turn). An increased distance d exacerbates the effect (think of a lever).