How do you factor in a "swinging" release, versus a "hitting" release?
Bob Freer
Bob
When you work with the time from release to ball impact it dose not really matter, whether the player is a hitter or swinger, if the speed and the release to impact time is the same, they need the same club. If their club head speed is different the player with the higher club head speed gets the softer shaft. I know all you expert club builders, that have told us why Tom's system is correct, don't understand that statement but for those who are interested in shaft mechanics, here is why. There are two mechanisms that close the shaft from the flexed position in the swing back to the shafts position at impact. This position is preferably straight to create the best performance.
1. The spring action of the shaft, determined by the natural frequency. From the flexed position the club must go through 1/4 cycle of its natural frequency to get back to the straight position.
2. club head speed generates centrifugal force that pulls down on the head helping to straighten to flexed shaft. The higher the club head speed the higher the centrifugal force and the more help the spring action gets to close the shaft back to straight. The more help the spring gets the softer the spring or in this case the shaft needs to be to do its part in getting the shaft back to straight in the proper time to match the players release to impact timing.
By the way I am still a single digit handicap at age 74.
llhack
