Lefties only golf tip: Hi I'm Tom Stickney Golf Magazine Top 100 Instructor and today were going to talk about gear effect. Sometimes when you hit off shots you feel like you make a pretty good golf swing and all of a sudden you see a little curve this way that way and if you look down at the base your driver you might see that you caught little bit on the heel or a little bit on the toe. You have to remember that drivers have gear effect if you miss the center of the blade if you catch it more on the heel of your driver the ball is going to tend to cut.