Agreed: Just outside the ding (which is the 4th line on the meter) will produce a fairly straight push or pull.
But take it one line further, to the 3rd or 5th: Hitting the ding on or outside these lines will result in a nice curved ball. No extra spin, I was told, and I never tried anything else.
Look at this one on OLY#5 (forward tees). It was aimed to the small tree with hat-like crown behind the fairway. The meter was well outside the 5th line. Look at the starting direction, the curve, the target and the distance with my 280 yds driver!