Alright I take the points of the OWN feeling. Its for sure important. I still say I am not incorrect. My opinion is that it is not the lateral movement to the target but to bring the hip in the right position, is the key to a good swing. The lateral movement is a necessity as the feet are apart. Sadly it makes it much harder to use the hip correctly. It is also my strong belief that golfers are devided in those who can use the hip motor by nature and those who can not. You will find a lot of longhitters hitting 300y and more in the first group and and a lot of arms swingers, goat humpers and hand flippers where driving is limited to about 250y-280y.
What I am trying to show is that if you use the hip-motor correctly in the feet together drill it will help you determine on how to use the hip when the feet are apart. If you like it’s a method to get the knee to the tripod or make the wastbin between your legs tilt. I have not seen any feet together drill flic that tries to explain the full swing hip rotation through the closed feet swing.
In fact my method is extremely easy to do with a strong feedback that lateral movement, with swinging the hip around the left femur like a western-door, is not the way to go and a strong feedback on how it is to be done.