Johnny Archer and I talked briefly about the LD shafts and we neither one use them. It's like the golf equipment that encourages a "straight ball," by reducing the "hook and slice" spin. This appears to be an advantage, but on closer inspection you will see why it's not.
While it will help the beginner or even intermediate player, the pro will have disadvantages using this type equipment. At the highest levels of golf and pool there's ways to use the deflection and/or spin to give yourself more margin of error. If you don't know how to do this it won't matter, if you do learn how to throw the balls to maximize your "zones" it will matter a great deal.
That's why you will seldom see the champion players use the low deflection equipment unless they're getting compensated. I would agree that if paid enough I'd use one too and just have it altered slighly so it would throw the balls enough to not be a disadvantage.
Just like the players that use the really cheap cues, they will generally have a "special" shaft that costs more than 2 of their cues. :wink: