I see the spot I want to shoot, then break the shot as the dot is getting to that spot (the timing takes practice.) I guess that means I see what I want to shoot out of my forwarded focused vision, and see the dot coming into that spot with my peripheral vision and when the two meet, the shot is good. On tough targets I see the round dot, on easy targets I see a blur of red on brown.
I don't get the whole shifting focus with a dot, the dot is superimposed on the target, why should you shift your focus from the part of the target you want to shoot? I had a problem shifting focus when I started shooting limited, but with open if you see red where you want to shoot, pull the trigger.