I just bought a set of used flighted Project X 6.0 .355 Taper Tip shafts on eBay that I wanted to install (DiY) in my irons, which are Taylor Made MB blades. Apparently, the shafts came out of demo clubs and are not a full set 3-PW. They are all basically 3-5 iron length, so I figured that all I would have to do is install these in my 4-PW and trim the butt end and they would be good to go, but in reading on forums and Rifle's website, it appears that the shafts are actually different through the set, and not just in length. The 3 iron shaft is different from the 4 iron shaft, which is different from the 5 iron shaft, and so on.
My question is, how can you tell which shaft matches which head? The best I can tell, it is not printed on the label or anywhere else on the shaft. At least if I know what each shaft goes with, then I can see what I have and buy the ones that I am missing in the set. Also, is everything I wrote above true, and therefore I should not proceed with installing these shafts in my set. I am a decent player (5 hcp), and would want the set to be right.
Any help from those who have worked with these shafts would be much appreciated.