so we all know the lower center of gravity.. typically the higher mpf.. song with a couple of other factors… But clubs with a higher center of gravity that typically have a lower mpf, doesn’t that help add back spin to the ball.. I mean just in the physics of it.. if i sweep under a ball it launches higher.. but a higher center of gravity pressing down on the ball should compress it more thus adding spin and possibly smash factor.. kind of like if you step on a tennis ball right it compresses it and shooys it out faster and adds spin… Am I right in this scenario?
Now maltbys are all about forgiveness.. Best clubs I ever hit BTW, but when making players clubs like mmb17 do you guys ever think hey let’s make the center of gravity a little higher so it is easier to compress a ball on a good swing even if it is slightly harder to hit?
And that is why cast and hollow irons lose spin right even if there the same loft.. more weight on the bottom and back creates an easier shot but will generate less spin, correct?
Actually, just the opposite should occur. In theory, the lower the cg of the iron is at impact in relationship to the cg of the ball, the more spin there will be. If an iron has a lower cg, it is reasonable to assume it would strike the ball below it’s cg more often. Important to remember that loft will effect spin much more than cg. This is clearly evident when you watch really good players, tour players, hit their wedges. You hear the announcers say “he’s holding that off to take the spin off” or “he’s bringing that in lower to reduce the spin” etc. etc. De-lofting reduces spin, no matter where the cg is.
First, your idea that compression is associated with where the cg is not totally accurate. The “compression” is a result of the speed and the angle. If I fire a ball from a cannon into a steel plate at 120 mph, the ball will compress a certain amount, irregardless of where the cg of the steel plate is. Higher vertical cg simply makes it a little more difficult to drive the cg of the club head on or under the cg of the ball, which is required for solid feel and proper spin and distance. Of course there are other factors and yes some players might benefit from cg’s that might very slightly higher. That being said, it is important to remember that the more loft on an iron, the more oblique the hit and the less the cg will have an effect on the spin. Also, the higher actual vertical cg, the steeper the angle of attack a player must have to drive the cg to or below the cg of the ball, which again is a necessary condition for solid feel and performance. If a player needs to control spin on irons, they would be much better off focusing on the type of ball they play, the lofts on their irons, and their own technique (specifically their angle of attack).