In my 32 years plus of delivering golf instruction to golfers of all levels. This is one of the most misunderstood parts of golf.
In fact they are very similar. The set up and ball position are different but the golf swing should be very similar. You hit a driver from a golf tee and this means your ball position should be forward in your golf stance. Your 7 iron is usually played from the grass so the ball position should be close to the middle of your stance.
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Please watch: “Draw The Line On Your Belly Button Putting Drill”