Everyone has quirks and flaws, from the 36+ hcp to Tiger Woods. The goal of the game is to use as few strokes as possible, not to swing perfectly (whatever that is). As long as you can hit the ball consistently with the swing you have, changing it is more a matter of whether you are content with what you have or not. Most players are not (no matter how well they swing) so they constantly work on it.

The important thing is that while playing on the course, you use what you have. If closing your stance works for you then do it. If it bothers you, practice on the range until you have fixed it then take it on to the course.

__________________
Regards, Peter
(WITB)