scotts33 I plan to follow his procedure (as best as I can) but that was one of my questions.
Given it is 2020, and I'm in the UK, there are no Mercury Savage shafts for me to use.
In his development notes one of the shafts he profiles is a Fujikura VistaPro 80 (S) which I did manage to find a good quality second hand one over here. But obviously, this is not the calibration shaft.
I don't plan to share data, just use it for spine finding and flex profiling and matching my own clubs.
As I'm not directly comparing this to anything else, does that mean once build and calibrated for build tolerances, whatever my readings are, my readings are and I simply work off those readings?
Also, and apologies for the questions, you mention the NF9.
I have scoured the web for any other plans than for the NF4 and drawn a blank.
Do you have a copy or link to the NF9 plans?
Thank you.