I’ve got an old CT250 I just smoke the ball with. Perfect draw ball flight. It has a Graman UL540 in it. What would be an equivalent today? I’d like to build a KE4 TC pro and see if it can beat my ct 250 for accuracy or distance. Went down the rabbit hole with google gemini, but really nothing seems to match that Graman.
The CT 250 Driver was a great one. I played it for years. The KE4 Pro is great as well. I never compared them side by side, but i do know the Pro is really good as well. I do think the Pro is probably the most similar we have had in shape, and the Pro sounds better. Again, never compared the numbers, but I do know the ball speed parameters we design to, the max allowable, was achieved in both.
As far as the shaft goes, we don’t have any data on the Graman UL540. However, based on what AI tells me, it was 64-69 grams, had low torque (2.5 degrees) and was/is a ” Mid-low kick point designed to produce a slightly higher launch while maintaining tight dispersion”. I will say that most manufacturers do not make wood shafts with that low of torque anymore. Maybe a few in the stiffer flexes, but not many. The reason is they realized that the torque generally does not have any measurable effect on the ball flight or performance, but does have an effect on the feel of the shaft. Variances in performance between a 2.5 and 4.0, for example, are not measurable, but the 4.0 will feel softer, more responsive. Most of the premium graphite shafts used by the best players now have 3.0 and above torque.
I have put a link below to a chart we have on our website that you can use to see all the options with similar specs. You should be able to narrow down some choices with the information on the chart. You will have to scroll down to the end of the article and click “Wood” PDF or download the Wood spreadsheet.
https://www.golfworks.com/finding-the-right-golf-shaft/
Britt Lindsey
Thanks Britt. Awesome info, I did not know the history of shaft design evolved like that. I’ll come back and report how it goes once I get the time to build a KE4 Pro. What I found, I am sensitive to the look of the face angle and the ct250 sits square. The head I have been playing is really upright (maybe 62-63) and sits closed 1-2 degrees. Which you would think I’d hook it being closed but I slice it. Anyway, it was eye-opening. Glad I kept the ct250 around as a sanity check.