I was searching through my pics today and had this one tucked away to try and highlight what I believe (from my own experiences and from mis-aligned instruction) can happen with swing deterioration, specifically with the lighter upright equipment.
Greg Norman- obviously as I have stated was my hero growing up. Tell me a kid from Australia my age when growing up who didn't have The Shark as their golfing idol.
Here is an interesting comparison from 1984- 2008. I know that is quite a time span and things can alter over a period of time like that. However the Shark is a fitness specimen for his age so thought he would be a good example.
The address positions are basically unchanged with the shaft dissecting just above the belt into the navel.area.....At the top of the swing the hand position is slightly lower in the recent sequence and the shaft is a bit across the line (as people would call it) compared the 80's swing.
The impact and thru swing are totally different however..... Hands rise into impact. right leg stiffens, Shoulders stay squarer. Shaft extension is higher near the pecs and not the navel/center start point.
And on the way through the club is closed down to the ground as a result of the raising into impact to throw the head onto the ball. It is a very different action and I can't help but think the equipment changes over the years kicked the crap out of Greg's abilities to dominate like he once did as they altered his action and he may have received some average advice along the way also..
It is very hard to find a picture of Hogan, Snead, Trevino with this shut down face on the through motion. The face was much more in line with the position shown in Greg's 80's swing .
If they all just dropped the club down to the ground from this point they could address it and the face would be perfectly square to them....they kept their address and impact alignments complete to the finish point from where they just folded to the follow through end in their own natural motion from here.
Worth studying and thinking about and thinking why and how