This shaft is the real deal. That is all.
Edit:
Just to add a few more notes now that I have some time. I played my first round with this shaft. I can without a doubt say that this shaft to me is leaps and bounds better than the Stability Tour that I’ve played for the last year.
The reasons:
1- Stable
2- Feels traditional at impact
3- Great distance control from lag distances
4- Makeable distances, does what you expect it to do
Stability Tour did 1 & 3 well for me. 4 was tough as I had poor speed control and felt that the roll carried more speed than I was used to. That led to strokes with no confidence and the ball rolling off line from impact.