I have True Temper Elevate 95 MPH shafts wondering if I'm in too light a shaft based on these numbers. Ball flight not pictured (sorry about that) but it went straight slight left to right. I have good ball speed but the spin is so low.
Iron head is PXG 0311 P gen 3.
Want to do a fitting just would rather buy something used that shaft fits me better instead of $1200 set.

I think you're in the right spot from this information.

You can probably go 95 - 110 IMO.

Thanks I have a range close by that sells used clubs going to see if I can find a few shaft options and see if they'll let me demo for a few swings.

I just changed Heads and shafts to work this exact same issue. I went from P790's that I played for 7 years with DG 120's to Callaway Elyte HL with MMT shafts.

truth be told, first I went to Calaway Elyte X and found that I was hitting the ball a LOT further, but had so low spin, I couldn't hold a green. Thus the additional switch. Very happy with it at present.

I know everyone will say, go to a fitter, but in this case, that is 100% the right answer. He can simulate which ball is right for you as well in the equation while setting you in the right shafts.

If it helps, I am a 7.7 index and 58 yrs old.