If you really want to un-isolate this position and you really want to get the feeling of what the left on the left shoulder is doing throughout the backswing, then by all means isolate them as much as possible. And the easiest way to do that is by having a one handed practice drill. Now one handed practice drill is they could help improve tempo, they can help improve variable speed and consistency of ball striking. But for this specific drill, they can also help you with that rotation and with the turn of the left shoulder.
Now as we've just done, we want that good solid setup. We don't want to be doing this in a lackadaisical way. We want to be committing to this as though the set up was for a proper show, so getting in a very strong setup, getting the tilt over with the spine, getting the chin and the chest nice and high so it allows that left shoulder to move.
But because we're only going to be using one hand, we're only going to be using the left thumb, we're not really going to be having many successful shots with a nice full swing. So we're only really want to be seeing a half swing back and through. Any more than that, you will start to lose the theme and you'll start to lose the effect that this drill can have.
So start off very, very small. Getting in the setup position, and in fact doesn't really matter of these ball strikes are success. It is just so you're getting the feeling within the arm and the shoulder, nice and soft, spine angle tilted over in that same way over here, so we're taking it back allowing that left shoulder to turn, allowing the arm to rotate backwards and just start with the little shot, just a very, very small shot, just chipping it forwards off the mat.
Now that's when you are going to be going about 20 yards and all you want to be doing here is just building it up slow. So the first shot is about 20 yards there, getting into the setup, just taking it back a little bit further, back and through and that getting us around 50 yards. And I'm going to have the last one all the way back, I'm going to move it back. I'm going to allow that left shoulder. I'm going to allow the arm rotation. I'm just going to try and add in a little bit of wrist tension. If it is successful, I'll be delighted.
So back posture nice and strong, little bit of wrist tension, clip it away, not the best strike, but it is all about gaining the feel of what's happening. So one handed swings will really allow to get the sensation of what you want the left shoulder and the arm to be doing during the back swing.