Hello. I was getting my driver built a couple of days ago and the fitter went through the process of finding the spine by clamping the butt end on a frequency reader machine and twanging it till it flat line oscillated.

My question is, will the FLO direction be the same whether the spine (in this case one) is located on the front or back (i.e. 3 o'clock or 9 o'clock)? But the idea of this is to have the spine facing the direction of play, like a branch pulled back. So should I be finding the frequency of both opposite orientations and pick the one with the higher CPM? Would it be correct to conversely assume that if I have determined the orientation that it near-enough FLOs but have the spine on the back it would be the weakest configuration?

I don't have a bearing-based spine finder so assume the frequency (and Floing ) would be the best way to go about this?

Thanks for your help.

I would say buy a good shaft and you don't need to do this.

In fact doing this to a good shaft will ruin it.

I only suggest it on filament wound mass produced shafts.