At the risk of oversimplification--ahem--when I hear visual sweep, I still think "Move your head so that you see the cut angle well and the pocket looks large."
Think about it and try it--start your stance with your vision center over the shot line, place the bridge hand down on the table--heck you can set the stroke hand down also--but move your head laterally until you feel locked in to the optimal place to shoot/aim toward.
Think about it and try it--start your stance with your vision center over the shot line, place the bridge hand down on the table--heck you can set the stroke hand down also--but move your head laterally until you feel locked in to the optimal place to shoot/aim toward.