Thanks, everyone, for the welcome.
I just picked up two sets. The first I got are, I think, 1966 Fluid Feels. I’m not certain though, because they don’t have the two diagonal marks on the rear of the club head, but otherwise look identical.
More recently I got a set of 73’s, with the screw-in weights. I love the Art Deco look to them, but the lengths are strange. The 7-9 irons are the same length as the ‘66 set, but the 6 iron is a bit shorter than the one in my older set, and the 3-5 are the same length as the next clubs down in my older set. So my ‘73 4-iron is the same length as my ‘66 5-iron. I’m probably going to end up reposting a lot of this info in the equipment forums and see if anyone can explain it
I find it fascinating that the golf industry is like my one industry in that companies are innovating and inventing new tech with the primary (often sole) purpose being to enhance perception rather than reality.
Had myself a bit of a milestone yesterday.
Normally when I play casual at my home courses, I'll play from the gold (seniors) tees because they are well over 6,000 yards anyway. With the club championship less than a month off, I've moved back to the whites in an effort to prepare.
I had managed scores in the 80s a handful of times from gold on Kittyhawk's Eagle, but for the first time, I broke 90 from the white tees. It's 6,713 yards, 71.9/125. Posting it on ghin, it's easily the best differential I've had this year.
The "milling" you see on clubfaces are simply tool marks left by the cutter head. I think people started associating them with quality or performance (think Scotty Cameron putters) so companies stopped polishing their clubs smooth. It's kind of funny because it saves them a step in the manufacturing process, as tool markings are generally considered unfinished.
As I understand it, they don't make a significant contribution to spin. Grooves affect spin because the edges grab the ball (less so now than with the old box grooves) and the void allows water and debris somewhere to go so you have cleaner face to ball contact, much like the treads on a tire.