Hello - I custom ordered the shaft above for my D3 from Titleist last July in a standard length with a stiff shaft. In doing some research, the shaft is acting more like a regular shaft. I have also heard that the MFT Kai'li 75 is only a 3 wood shaft. So my question is, has the shaft's performance been compromised by lengthening it play in a driver? I chose it because it was a heavier shaft and I figured that the shaft's stiffness wouldn't change. Thanks for the help! Todd Olson