I have played Tensei Red in my irons but we went through a proper fitting so my "thoughts" would be, the only thing that matters is what feels right for your swing and gets you the result you need. Even if hundreds of people did not like Tensei Blue iron shafts, if they work for one individual, he/she should go with that shaft. I have never really understood the logic in asking for an open opinion to back up a personalized decision. Anyway, hope you either get a proper fitting or find a shaft that best matches your needs.

I have the Tensei (AV) blue in my T300s. Was fit at the Titleist fitting center at Pinehurst two years ago. These shafts performed better (for me) than the Red (AV) and the AMT Red Steel shaft. At my age (70) these shafts perform well for me and are much easier on the body. Using the Prov1x with these clubs I get the performance I am looking for. If it doesn't feel right, try another shaft. Your fitter will find the right shaft for you.

I have the Tensei (AV) blue in my T300s. Was fit at the Titleist fitting center at Pinehurst two years ago. These shafts performed better (for me) than the Red (AV) and the AMT Red Steel shaft. At my age (70) these shafts perform well for me and are much easier on the body. Using the Prov1x with these clubs I get the performance I am looking for. If it doesn't feel right, try another shaft. Your fitter will find the right shaft for you.

Can you explain why the AV Blue AM2 shafts performed better than the AV Red AM2 and AMT Red? Driver swing speed, tempo, etc.