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Steel shafts may be made by either the seamless extrusion or the welded method, but both are going to be forced under extreme pressure thru a sizing die that squeezes them down to their final diameter. That will make help keep wall thicknesses very constant all the way around the shaft. I think this is probably the main reason why quality steel shafts are so consistant. I had a friend of mine who is a professional club fitter and builder frequency check several stock OEM graphite shafts of mine recently, and we have not found one that was true to the flex rating written on it. One rated as senior flex rated turned out to be Ladies flex, and a regular flex that in reality was stiff. So it goes to say that you should not always believe what is written on the shaft. Have a professional check them for you. It sure opened my eyes. Apparently the OEMs throw stuff together and never check what it actually is. None of the OEM clubs I have checked were properly spined, either. Maybe we would ALL be better off going to custom components built by a professional fitter and builder and avoiding the hyped, high priced OEMs.

There is one thing your really should know about frequency meters. A FREQUENCY METER ONLY MEASURES THE STIFFNESS OF THAT PART OF THE SHAFT THAT IS INSIDE THE CLAMP. What this means is that when a club maker clamps the butt end of your club in the clamp, he's only measuring the stiffness of the last 4 inches of the shaft, not the entire shaft. This makes for a real problem as some shafts have softer butt sections,and stiffer middle and tip sections. While other shafts have a stiff butt section, and softer mid and tip sections. So a shaft with a soft butt section, will measure soft, even if the total stiffness of the shaft is quite stiff. And the other way around. Plus one more factor. When I've had my clubs tested by a custom club maker, they always tested the clubs with the grips on when fitting the butt end in the clamp. And what is the grip made of, if not rubber. And we all know that rubber is a great vibration dampening agent. So when they measure the frequency of the vibrations, it's with a rubber vibration dampening agent on the shaft. NOT REAL GOOD. When I had my clubs tested 2 years ago, I was told all my shafts were wrong, and had to be replaced. There were top of the line TT Tri-Gold shafts.with Sensacore inserts. So I contacted TT, and asked about frequency meter testing of shaft. What I found out was what I just told you. Frequency meters only measure that section of the shaft that is inside the 4 inch clamp. So if you want to test the entire shaft, you need to test every 4 inches of it, one section at a time. And I've never seen anyone do that when testing my set of irons. I've had my clubs tested 3 times at three different custom shops, and every time all they did was clamp the butt end in the clamp the tell me my shafts needed to be pulled and new one installed. You don't have to take my work on this. Do yourself a favor, and ask True Temper about frequency meter testing yourself.