Golf swing upright posture spine angle /?
You are looking at 2 diff. Videos - 1-Sean-Ohair upright 2. Jeff Quinney, fairly flat (Or is it not the best example?) They are basically the same height, but it seems that if they bend the same amount to the ball, if OHair is closer and Quinney is more - how is this the case? I thought that most have vertical swings are up enough to address
O'Hair seems to be straight, but look more closely at his plane back to the ball. It drops the club down and in a bit. Taking the club so this pic just gives space to file inside. If you notice that he holds the release of a few of his hands so that the club does not turn over and hang left. I'm sure his career progresses you will see the start of the match and back down swing paths closer where he can release the club more with his body and will not manipulate his hands. What you see with your question is that the arm, and leg length torso all play a big factor in determining the aircraft, not just the spine angle.
Basic Golf Stance and Address Routine to help build a consistent alignment to target, posture and more