The visual aiming I do varies from time to time without consequence, but when I alter how I align to the shot with my body it throws my whole perspective off....when I took so much time off I changed my body through martial arts training and effected my shoulders and arms, thus changing the "line" I had been using with my eyes....these things are simply a chain reaction that I believe ALWAYS start at your feet and work up.... I've made some exciting discoveries through this process and probably wouldn't have discovered it any other way;-)
