Are you sure your improvement is from the "hinging" and not primarily a result of keeping the club in front of you? After a lot of years of loosing distance and accuracy, I improved finally just by keeping the club from getting behind me and out of sync with the rest the swing. Once your body is ahead of the club it is hard to achieve any accuracy or distance. A large turn is not necessary to get the club behind your body and out of position. Thinking of a triangle formed by the arms and club and keeping the triangle in front of the chest has helped me and now I am trying to get more "proper" wrist action rather than less.