As far as Hogan's lie angles as Cy was asking about....here is a little more thought.
From much reading and listening to Hogan interviews....he talked a LOT about trajectory. This would mean that in his mind he had most of 'it' down right where he wanted as far as direction.
As I have spoken about previously the flatter you can swing the LESS poor clubface alignments affect direction or dispersion...and...the more trajectory becomes affected
This was talked about by hitting drivers from your knees.....you will see the more the face is open at impact the ball goes higher but NOT as far right....and the more the face is shut at impact the ball goes lower and NOT as far left...... dispersion rates of ball direction and curvature is greatly limited with a flatter shallower swing.
So Hogan worked out any variances in his motion or twisting or torquing the shaft in a different manner when he swung at it....would mainly affect the trajectory and have less hindrance to his direction of intent.
Hogan quote from a book about the Harmon family
Once when practicing with Ben Hogan Claude Snr. asked Ben about swing plane. Mr. Hogan pointed his thumb down the range at the other players and said,
"They keep trying to get their hands high, more upright, and I'm trying to get flatter all the time. As I get flat when I move into the ball with my left side, it drops me inside even flatter and I come from the inside every time without ever coming over the ball. The flatter I get the fatter my wallet gets."
Hogan understood all this from a biomechanical viewpoint of how connection works and how to limit the clubface from moving around.....and he set up his clubs to match
I have heard all types of 'guesses' at Hogan's equipment specs..... Jody Vasquez who says he shagged balls for Hogan says they were 1 degree flat and swungweight at D1, someone in another thread recently said he heard they were 5 flat....
Unless we have held them in our own hands the best 'evidence' we have is the club he used at Merion that is in USGA house. The club is a 1 iron which had an approx loft in that era of 20-21 degrees (which would make it a current day 3 iron by loft measurements)
We can see it flat on the table so can get a pretty qualified measurement- and it weighs in at 51 degrees
What is company standard today for a 3 iron lofted length club?.......59 degrees?? So what he was using there is approx 8 degrees flatter than what a standard club of today is....and of course people end up being fitted into clubs even more upright than that....so a person could be using a 3 iron that is 10-12 degrees different in lie angle to what Hogan used...and they wonder why they can't come remotely close to swinging it like Hogan!!!
Here is a letter response from Tom Wishon who held and measured some of Hogan's gear through a meeting with Hogan's club maker Gene Sheeley.......he again describes the clubs as FLAT and HEAVY!!!
And just for reference here is the specs of Tiger's clubs so you can see the variance when compared.... I find the setup of his driver interesting and would put an asterisk** right around that number as to why he has more trouble with the driver from the tee than he does with his fairway woods..... as a club gets longer it should get flatter.....his driver is 3 degrees more up than his other woods...makes no sense
Flatter lie angles-- The best kept secret in golf!!!!!!!!......