Do some Dry Fire to establish your ?index?. Dry firing correctly builds up muscle memory and when you draw, you can even have your eyes close and still have your sights on the target. It takes awhile to get it but it beats wasting ammo unless you have a lot to shoot.
By the way, how fast are your quick shots? Six shots in 2, 3 seconds or more? How fast are your splits? Do you have a timer?