There is no magic by using one shaft or the other.
IMO the LD shaft is probably easier for a beginning player to learn. They can see the aim line and point and shoot. They don't need to learn to make quite the adjustment needed as with a higher deflection shaft.
This is a good point and I agree that LD shafts will help a beginning player play better faster. Just point and shoot without fear of deflection causing a missed shot.
LD shafts are good tools and I think it's up to the individual which type of shaft they want to use. I've used both and I like both types standard and LD shafts, but you have to sacrifice a little whichever way you go.
Standard shafts: you lose the point and shoot ability because you have to know your equipment better and learn how to aim with your particular shaft, but you get more control IMO.
LD Shafts: just point and shoot, but you will lose some control on certain shots for example- shooting a ball in the corner pocket with high inside english to follow it out 2 rails. I've had trouble some times with my 314-2 shooting this shot and I think it's because of the give in the end of the shaft to reduce deflection causing the cue ball to not follow and take the english like a standard shaft does. It may just be me, but that shot has given me trouble and not all the time, but every once in a while i'll hit it and wonder what happened! I don't have that trouble with a standard shaft as long as I hit the shot correctly the cue ball goes where I think it's going, but every once in a while the predator shaft will hit that shot funny.
James