The problem us weekenders have is that we can make it happen on the range but the course is far more demanding. So when the wheels come off on a shot, we immediately go into mechanics mode to make the appropriate adustments and then move on to the next series of shots while still staying in a mechanical mindset. Rather than accepting the shot for what it is and staying in "player mode".
If I may add that what people fail to do is reconnect the proper mechanic with the corresponding "feel." My game went up a notch when I made last step in a "fix" is the indetifiable feel. These days I am completely reliant upon the feel of my right forearm flying wedge. Once I sense the angle that I need to take the right forearm up, back and in and down, out and forward...it is go time! I cannot pull the trigger until I feel/sense that plane of motion. Our feel system is our ultimate reality out there, the good news is that we can engineer it using proper mechanics FIRST.