Anticipating the shot can be a hard one to overcome and one must overcome this for really good, or repeatable accuracy.
From time to time a buddy of mine and I used to look away from the weapon and let the other hand the weapon over as being as hot, whether actually loaded or not loaded, just to see how badly we were or weren't jerking the shots. That little game actually seemed to help us both out more than either thought it would.
Dry firing regularly to train your brain that pulling the trigger doesn't always equal a "bang" or recoil. This can help eliminate the subconscious urge to flinch.
In my experience one of the most important things is to maintain strict focus on the front sight through the entire shot, including the recoil and recovery, rather than focusing on the target.
Trigger control is an absolute must! Squeeze the trigger straight back as smoothly as possible trying to let the shot surprise you.
Having really good triggers that pretty much break like glass helps a bunch. Triggers that are gritty with a lot of take-up and travel are a bad culprit of pulling shots as well.
I'm probably preaching to the quoir on this but maybe it'll help.
