Things that you might not know about LD shafts maintenance

mortuarymike-nv

mortuarymike-nv
Silver Member
Not to long ago there was a thread about how to get a dent out of a laminated LD shaft.

Everyone or allot of us including me said water or steam.
But I did say I wouldn't use water or steam on any laminated LD shaft.

Removing a dent in a solid maple shaft is extremely easy using many different technics.
Water steam, wet towels wet band aids wet towel and a hot butter knife.

But on a laminated LD shaft, the same technics is a major no no according to Predator laminated LD shafts......

So after a little research I thought I would post a little more info about Laminated LD shafts.
Everything below this sentence is copied/ quoted directly word for word from the predators web site,
http://www.predatorcues.com/technique/


About Pivot Points

With any shaft, there is an optimal point on the shaft, called the pivot point, where you need to bridge to maximize your accuracy. In simple terms, if you bridge at the correct pivot point for your shaft and your initial set-up alignment is on target, you can actually hit the cue ball off-center and still hit the 1-ball dead center.

At that bridge length, the deflection, or squirt, produced by the shaft will compensate for a stroke that deviated from its original set up or alignment. The optimal pivot point on the break is the bridge length that allows you to maximize your speed and gain maximum forgiveness at the same time.

The BK2’s pivot point has been tuned between 13″ and 14″ to allow you to maximize both acceleration and forgiveness at the same time.

A majority of strong breakers bridge between 13″ and 14″ because it allows them greater acceleration and more powerful breaks. Most break cues have pivot points between 9″ and 11″ and require an extremely accurate stroke when using a longer bridge to generate speed. The BK2’s pivot point has been tuned between 13″ and 14″ to allow you to maximize both acceleration and forgiveness at the same time. With a pivot point 2″ longer than its next competitor, the BK2 gives you greater speed, increased accuracy and, much more importantly, a more powerful break.

Shaping Your Tip

Predator research has clearly shown that a dime radius (or shape of a dime) will produce 5 percent to 10 percent less cue ball deflection than the more commonly used nickel shape. The cue ball deflection is reduced because the dime radius centralizes the hit to the center, or strong part, of the shaft.

What Burnishing Does For Your Shaft

The purpose of burnishing your shaft is to smooth and seal the wood. The more you burnish, the better the finish and, the slicker and more moisture resistant your shaft becomes. Moisture is the #1 enemy of your shaft. It causes the grain to raise and your shaft to warp. To burnish your shaft, use a leather burnisher and avoid abrasives. Sanding your shaft wears it down and makes the wood porous, which allows moisture to penetrate the grain and damage the wood.

Stay Away From Abrasives

Do not use any abrasives on your shaft and stay away from green pads in Pool Rooms. Using abrasives is going to take the diameter of your shaft down and modify the shape of your taper. It may even void the warranty of your Predator shaft if the ferrule or wood diameter falls below 12.25mm for 314 shafts and 11.4mm for Z shafts. Very fine micro papers (1500 grit) or burnishing is about all you need.

Break Cue Weight

Contrary to what many believe, lighter is better when choosing a break cue weight. Even though a heavier break cue feels more powerful, a more powerful break will be achieved with a cue weighing 18.5 to 19 oz. Most professional players break with a cue that is 1/2 to 1 oz lighter than their playing cue because less weight allows them to generate more cue speed, resulting in greater cue ball speed and a more powerful break.

I hope this info is useful to some of you guys who use laminated LD shafts .
 
This is generally good advice for any shaft. In 1991, soon after buying my South West cue, I called Laurie Franklin to ask about upkeep for the cue. She told me that if I ever sanded the shaft, she would take it away from me. ;) More recently, I took my 1985 Joss MW to SBE and showed it to Dan Janes. After 25 years, it is still perfectly straight and plays great. He ran a shaft through his fingers and asked, “you haven’t sanded these shafts, have you?” When I said that I hadn’t, he thanked me.

I don’t know much about the impact of tip diameter, but I don’t worry so much about minimizing squirt on my not-so-LD shafts.
 
I tried using the search function to no avail, does anyone know the approximate pivot point for a 314-2 shaft?
 
Break Cue Weight

Contrary to what many believe, lighter is better when choosing a break cue weight. Even though a heavier break cue feels more powerful, a more powerful break will be achieved with a cue weighing 18.5 to 19 oz. Most professional players break with a cue that is 1/2 to 1 oz lighter than their playing cue because less weight allows them to generate more cue speed, resulting in greater cue ball speed and a more powerful break.
This isn't true for all people. For more information, see:

optimal cue weight

Enjoy,
Dave

PS: A lot more information about LD shafts, including complete lists of advantages and disadvantages, can be found here:

low-squirt (low-deflection or LD) shaft resource page
 
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FWIW. I just bought a new break cue. I did 25 breaks with it using the same form and ball spot. Then i removed the 2 oz weight it came with and did the 25 breaks again. With no weight I averaged 2 mph more for the 25 breaks. BB2 weighs 17.6 with no weight

Then I took my old break cue and did the same thing. Averaged a little over 1 mph more over the 25 breaks. J&J 2729

Needless to say, for me, lighter is better when breaking. Like Dr Dave says though, it will vary person to person. And i may do my same test again after a month or so.
 
I tried using the search function to no avail, does anyone know the approximate pivot point for a 314-2 shaft?

I would just run a simple test yourself to determine the pivot point. This is used for BHE, but applies to the break also to minimize error. And before I explain it, let me just mention also that the pivot point used is determined on speed and distance from cue ball to object ball, as well as felt conditions. The pivot point to bridge for a break shot will be closer to the ferrule than one used to play english off of the rail using a medium hit.

To find the pivot point for a break shot, which is the intrinsic pivot point, or PPi:

Set up a straight in shot greater than 5 feet apart, marking the table with the cue ball and object ball spots in order to replicate the shot.

Use back hand english while pivoting on the bridge hand. Make note of the distance between your bridge and the cue ball. Shoot at a hard controlled speed, as close to break speed while still keeping full control of shot.

If the cue ball stops dead and just spins after the hit, you found the pivot point. If the cue ball moves to the same side as the english you applied, set up the shot again, and move your bridge hand back a little and try again. If the cue ball moves in the opposite direction from the side you applied english, move your bridge hand forward.

Once you find this point, you can gauge how much further back your bridge hand has to move when using BHE at slower speeds, and at various distances between object ball and cue ball.
 
I would just run a simple test yourself to determine the pivot point. This is used for BHE, but applies to the break also to minimize error. And before I explain it, let me just mention also that the pivot point used is determined on speed and distance from cue ball to object ball, as well as felt conditions. The pivot point to bridge for a break shot will be closer to the ferrule than one used to play english off of the rail using a medium hit.

To find the pivot point for a break shot, which is the intrinsic pivot point, or PPi:

Set up a straight in shot greater than 5 feet apart, marking the table with the cue ball and object ball spots in order to replicate the shot.

Use back hand english while pivoting on the bridge hand. Make note of the distance between your bridge and the cue ball. Shoot at a hard controlled speed, as close to break speed while still keeping full control of shot.

If the cue ball stops dead and just spins after the hit, you found the pivot point. If the cue ball moves to the same side as the english you applied, set up the shot again, and move your bridge hand back a little and try again. If the cue ball moves in the opposite direction from the side you applied english, move your bridge hand forward.

Once you find this point, you can gauge how much further back your bridge hand has to move when using BHE at slower speeds, and at various distances between object ball and cue ball.


You can also find the pivot point fairly quickly by holding the back end of the cue with one hand and tapping along the shaft with the palm of your other hand. Start at the joint and start tapping with your open palm towards the tip end. While you are doing this, pay attention to how much the tip vibrates with each tap of your palm. The pivot point will be the spot on the shaft where you tap with your palm and the tip doesn't vibrate at all. This isn't perfect, but it will get help you identify the range in which the pivot point is located, and can be done in seconds.
 
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