Stand facing the mirror in retiré with your arms hanging to the side. Now, turn 90 degrees to the side, and take your retiré position again, but turn and look in the mirror. You should notice that you’re flat in both positions, much like a spinning coin on a table.
This is the idea you want to think about when turning, that you’re a flat coin. A coin doesn’t hunch half way up, does it? It doesn’t stick its very top up in an effort to spin more, does it? No, unless someone has bent it with pliers, a coin is flat, which allows it to more easily turn around its axis when you spin it on a table.
Now, you’re not perfectly symmetrical in a pirouette obviously, but its a good exercise to think of this idea. Think about not turning like a wobbly soup can, not turning like a square block, but turning like a flat coin.