re: F.L.O. Shafts

No it is not and it is better than a spine align. He explains how to do both. I contacted him and he said he showed both methods to clarify the difference but he also said it was a waste of time to do the spine align, although he does not out and out say that in the video, you can read the messages below that eventually clarify, the spine align does not need to be done and is the incorrect way to install the shaft.

I used spine align 2 years ago was not pleased, now I know why.