good shaft? How do they compare to XP or to the Dynalite's? I know the SL's are lighter. Not sure what that brings to the table for me. TT web site says lighter shafts typically mean higher launch.
Remember to account for the affect of shaft weight on clubhead speed, which influences ball height on launch.
True Temper has two traditional iron shaft families, Dynalite Gold and Dynamic Golf. Both are heavier shafts (about 120 grams), except for two SL models which weigh about 104 grams.
Low bend point gives a higher launch, high bend gives a lower launch.
Before I went to the GolfWorks school, I got a demo 6i to match my X20 Tour irons. My playing irons had Project X shafts, and I reshafted the demo 6i with a Dynamic Gold SL to compare the two shafts. Here are the specs:
|Shaft||6i Shaft trim||Bend||Tip||FCM*|
|PX 5.0 Rifle Flighted||110 gr.||Mid||Med-Firm||5.5|
|TM Dynamic Gold SL R300||100 gr.||High||Firm||4.8|
* FCM = Frequency Cycle Matching, a system for comparing shaft flexes across
manufacturers. Both the above shafts are considered R flex by makers, but R300
is more than a half-flex softer than the PX 5.0.
I did side-by-side tests with the 6 irons both outdoors and on the launch monitor. Outdoors, the more flexible and lighter SL R300 actually launched the slightly higher and a bit longer than the PX. In a crosswind, however, the R300 also blew around more.
On the launch monitor, I averaged 72.9 MPH clubhead speed with the PX, and 74.1 with the R300. Also, R300 averaged 3 yards farther in distance. The golf pro said since I was working on my swing, I should just keep the PX shafts.
Hope this helps. Also, check out Ralph Maltby's web site - http://www.RalphMaltby.com - he has several links on shaft selection. Also see shaft maker sites.