A lot of weekend golfers will tend to swing the club too far behind them in the backswing, creating too shallow a plane. This leads to the golfer hitting a lot of pushed shots or hooked shots because the club tracks too far from the inside into the ball.
If your swing plane is too flat, get out in the rain and make a backswing with your umbrella, says TG Elite Pro Rob Watts.
If your swing is too flat, the umbrella won’t be covering you and you’ll get wet, assuming the rain is falling straight down. This drill instinctively encourages you to swing the club back on a steeper plane to stay dry.