Can anyone advise me if this M2 driver is a good buy? Do not know anything about driver shafts

[Canary_Yellow]

Ive got a matrix white tie shaft in my driver. It’s the real deal, not a made for.

I like it. Got fitted for it at a time when I needed a bit of help launching the ball.

I take with a pinch of salt the degree to which that kind of characteristic makes a lot of difference, if buying second hand id focus more on flex