When using laser to find the spine of a golf shaft how do you determine between the spine and NBP of the golf shaft.

BradsGolf Answered question January 14, 2023

Been there!
My experience to definitely determine one from the other, you need a frequency analyzer/meter. The highest frequency will determine the spine, lower frequency the NBP. I don’t believe you can do it with a laser tool alone.

When i flo a shaft I seldom find what one would call an NBP and I’m not really concerned with the spine. I’m strictly looking for the best FLO. Once I detemine that, I usually (95% of the time) find FLO 180* on the opposite side of the shaft (not that it’s really important).
I orient the shaft to oscillate left to right, once i get the straightest oscillation, I mark the shaft on top (12:00), and orient the 3-9 position (FLO) to/from the target line.
there are a lot of threads involving this on this website. Popeye made my life a lot easier regarding this. see this thread: https://ralphmaltby.com/questions/question/puring-and-flo-questions/answer/7421/
If you bring this up on some of the other forums, it can get pretty intense!