For me anyway.
I have always fought target panic. However, I've always been able to compensate and shoot reasonably well.
This year, however, I declared war. So far, nothing had worked. I finally broke down and bought a clicker. While setting this up I unintentionally made the best move of my shooting career; I set the clicker up a half inch longer than my normal draw.
Now, when I come to full-draw and anchor (at the corner of my mouth, index finger) I am forced to use back tension to attain the extra half-inch. From doing this, I now know I was never actually engaging the muscles of my back.
I've been shooting 200-300 arrows a week since May and after only 25 arrows my back was burning. In fact, I woke up the next morning stiff and sore. I've never done that in the past.
The best part, though, is that I am shooting unbelievably well. This little clicker will be a permanent fixture. Period.