In theory, Bob, yes. Anything that gets your arrow closer to your eye will reduce the aiming error. But then you get into the mechanics associated with the 3-under anchor and, if the bow isn't tillered for 3-under, then the tuning changes you have to make will likely offset any accuracy advantage that might have been gained. You can also anchor up on the cheekbone to get the arrow closer to your eye, but if that anchor puckers the skin around the eye and interferes with your vision, then you've gained nothing.