Cue weight and Deflection?

[racer rx]

If I had two idenical cues: one 19.5 oz and another 18 oz. Will one cue have more deflection than the other?

 

[JohnnyP]

According to Predator, only the mass of the last five inches of the shaft make a difference.

According to their patent, they also make the last few inches of the shaft, including the ferrule, flexible enough for the cueball to push out of the way.

Here's the tech page at Predator's site, showing two patent numbers:
Predator tech

To view the patent, copy patent number 5725437, then paste it into the search box here:
Search patents

 

[drivermaker]

According to Predator, only the mass of the last five inches of the shaft make a difference.

Yeh, and although that's what their claim is, I think in real life with a player actually striking the CB instead of "Dead-Eye Dick" the robot, shit happens.
I could be wrong and the weight of the cue might just cause some stroke flaws and timing issues to cause different CB reactions as opposed to deflection itself, but it sure seems to affect deflection. If you take one cue and lighten it to 18 oz. and then add varying size weight bolts in 1-2 gram increments up to 19.5 or 20 oz., it isn't just feel that changes, other factors occur. If you doubt it, do the test yourself and see what happens on your own.

 

[JoeyInCali]

According to Predator, only the mass of the last five inches of the shaft make a difference
Totally wrong imo.
You can even do your own experiment.
You can find out that a shorter bridge cuts down deflection.

 

[Jude Rosenstock]

If I had two idenical cues: one 19.5 oz and another 18 oz. Will one cue have more deflection than the other?

Wait, are you talking about cue-ball deflection or how much a cue will deflect when I toss it across the room? I know from experience that an 18 oz. cue will bounce off of the side of a standard Crown IV much more than a 19.5 oz. cue.

 

[SkippyFL]

Wait, are you talking about cue-ball deflection or how much a cue will deflect when I toss it across the room? I know from experience that an 18 oz. cue will bounce off of the side of a standard Crown IV much more than a 19.5 oz. cue.

Is that using the spear method or helicopter method? I find that I get much more deflection using the helicopter method. Its also much more of a crowd pleaser.

Skippy

 

[Jude Rosenstock]

Is that using the spear method or helicopter method? I find that I get much more deflection using the helicopter method. Its also much more of a crowd pleaser.

Skippy

I can go clear across the room with the spear method but for testing purposes, I was simply slamming the cue across the side of a Brunswick Gold Crown IV with tip-up, holding the cue around the joint with a sweeping motion similar to spiking a football. Really, I'm very good.

 

[ScottR]

I can go clear across the room with the spear method but for testing purposes, I was simply slamming the cue across the side of a Brunswick Gold Crown IV with tip-up, holding the cue around the joint with a sweeping motion similar to spiking a football. Really, I'm very good.

Kids, don't try this at home. This man is a highly trained professional, performing in a closed room, under tightly controlled conditions and with emergency crews standing by.

 

[Jude Rosenstock]

Kids, don't try this at home. This man is a highly trained professional, performing in a closed room, under tightly controlled conditions and with emergency crews standing by.

*bows to the crowd and nods affirmably*

 

[racer rx]

Wait, are you talking about cue-ball deflection or how much a cue will deflect when I toss it across the room? I know from experience that an 18 oz. cue will bounce off of the side of a standard Crown IV much more than a 19.5 oz. cue.

I can go clear across the room with the spear method but for testing purposes, I was simply slamming the cue across the side of a Brunswick Gold Crown IV with tip-up, holding the cue around the joint with a sweeping motion similar to spiking a football. Really, I'm very good.

Thanks for the usefull information! NOT!