TEPaul,
What you're missing is that Hogan was 215 yard from the center of the green after his drive.
A drive to a fairway that is downhill from the tee.
Years ago, when I played the same tees, I was much closer than 215 yards. Shivas is telling you he was only 145 yards, which means that he hit his drive 70 yards FARTHER than HOGAN.
Hogan was a far, far, far better ball striker than Shivas.
But, it's been technology that has changed the distances players hit the ball, not talent.
That's the revelation.
Kevin Reilly,
I have MacGregor irons from the 50's, Tommy Armour's and some old colorchromes too. Today's 8-iron is NOT the same as a 6-iron from the 50's. In 1985 when I switched from my MacGregor's to Ping Eye 2's, I was shorter with the Eye 2's, especially from the rough.
With the same steel shafts, there might be a club difference, at most, in today's irons versus those in the 60's.