An old school golfer, who wants to rant and rave about hitting irons, will tell you that as the loft of the club increases you should have a different stance. So, in other words, as the position of the ball shifted to the right as the loft changed you would take a more open stance.
Today’s golfers, especially the professionals, use a much simpler system. In this simplified approached, the right foot moves closer to the left as the loft increases and the golf ball is positioned closer to the golfer (because the shaft on the club is going to be shorter).
So the moral here is that regardless of what club you’re playing make sure your stance is square to the line and your golf ball is always played off the heel.