A wise man once said, "A man with one watch always knows what time it is. A man with two watches is never quite sure."
I remember when I first decided to get a predator shaft it took me a good 3-4 months to completely adjust to it. Played with it for a couple years and decided to switch back to a standard shaft. After switching it seemed like it took even longer to make the transition away from the predator.
Most of the shafts I have now are standard shafts but they also have some low deflection properties. For example i like my shafts to be on the lighter side of the scale, maybe 3.2-3.5 ounces. I also like them to have shorter ferrules, 1/4 or 1/2 inch, I think this also minimizes deflection. And I prefer a smaller diameter shaft, 12.2 - 12.3mm. With all these variables in play I feel like I can pull any shaft out my case and not lose a step since I have had them all made to the specifications that I like and any adjustment shouldnt take more than a couple shots to work out.
Since I'm on the topic I have tried several LD shafts just to see what they are like over the years. I have found that the Tiger shafts seem to deflect a little more than my standard shafts. Predators deflect less than mine. And the OB Classic series plays pretty damn close to the shafts I currently play with.
I guess the point is you dont have to have a "low deflection" shaft to have a shaft that exhibits low deflection properties. In my experience one piece shafts are more consistent than any LD brand name shaft I have used. But to each their own. It may take years for a player to really decide what they like in a cue and what they dont. But at the same time one of the most consistent players I know has been playing with the same cue since 1981, so take that for what its worth.