Jacoby Jump Shaft - Brass Ferrule

Mikey Town

Mikey Town

AzB Silver Member
Silver Member
Hi all,

I'm thinking about having the brass ferrule replaced with phenolic.

Does anyone know if this ferrule is threaded over a standard tenon, or is the male end a part of the ferrule that is threaded into the tip of the shaft?


Cheers,

Mike
 
I'm not knowledgeable on the construction of this shaft but why would you want to replace it's brass ferrule ?
What I do know about jump-shafts in general is that they are the exact opposite of an L/D shaft.
L/D shafts want wght reduction at the tip whereas jump shafts do better with more wght at the tip.
Hence the brass. You may not like the results if you make the switch. What are your thoughts ?

KJ
 
KJ Cues said:
I'm not knowledgeable on the construction of this shaft but why would you want to replace it's brass ferrule ?
What I do know about jump-shafts in general is that they are the exact opposite of an L/D shaft.
L/D shafts want wght reduction at the tip whereas jump shafts do better with more wght at the tip.
Hence the brass. You may not like the results if you make the switch. What are your thoughts ?

KJ
Click to expand...

I've actually acquired a custom jump/break cue that came with both an edge hybrid shaft and a Jacoby jump shaft that are both matched to it.

I plan on using the cue primarily as a breaker, but if I need to jump a ball, I will break it down and use that feature. I don't jump all that much, so having the best jump cue option isn't much of a concern to me. Just having a serviceable option conveniently available to me is more than enough.

I read (on the Jacoby website) that the jump shaft has a "stiff" taper and a 13mm tip diameter... both things that would lend themselves to being a good break shaft.

My hopes are that replacing the brass ferrule with phenolic will reduce cue ball deflection enough to make it a more effective break shaft, while still retaining the properties of being a serviceable jump shaft.

I really like the way the edge hybrid shafts play, so I may have that one converted into a shaft for my playing cue.


Cheers,

Mike
 
I have no idea, but snooker brass ferrules are often just pressed on.
A short G10 ferrule wil probably be great :-)
 
L/D characteristics are not a concern in a break shaft.
L/D on any shaft comes into play when you deliberately strike the QB off-center.
On the break, the focus is on center-ball-hit to transfer the most energy, straight ahead.
From what you've described the Jacoby shaft to be, it already has everything you'd want.
A pheno-ferrule will only take away from that.

KJ
 
KJ Cues said:
L/D characteristics are not a concern in a break shaft.
L/D on any shaft comes into play when you deliberately strike the QB off-center.
On the break, the focus is on center-ball-hit to transfer the most energy, straight ahead.
From what you've described the Jacoby shaft to be, it already has everything you'd want.
A pheno-ferrule will only take away from that.

KJ
Click to expand...

It's not the deliberate off-center strikes that I'm concerned with.

I have a full time job, a family and prefer to spend more time on the golf course than in the pool hall. When you don't play all that often, off center strikes on break shots happen when that isn't exactly your intent. For these shots, less deflection gives you a little more margin for error.

Much like in golf, if an equipment change will give me more margin for error, without much of an adverse effect on performance (cue ball control, power transfer, etc...), then that is a change that I want to explore.

Thank you for your input.


Cheers,

Mike
 
jacoby jump

I use my Jacoby jump shaft on a regular butt for breaking. I can't imagine changing to G-10 or phenolic. I repair cues and have made many changes to break cues, but I certainly would not do so with this shaft. Take some speed off your break to reduce off center hits.
 
fishermanOICUR1 said:
I use my Jacoby jump shaft on a regular butt for breaking. I can't imagine changing to G-10 or phenolic. I repair cues and have made many changes to break cues, but I certainly would not do so with this shaft. Take some speed off your break to reduce off center hits.
Click to expand...

I wrote multiple posts explaining what I was looking to have done, and the thought process behind why I was looking to do it. My decision is well thought out, and my thought process leading me to this decision was more than logical and based on my own real world results.

I'm not sure why you "can't imagine changing to G-10 or phenolic," but you don't have to... I've imagined it. I'm also not going to take speed off of my break. Why? Because I don't have to... especially when a small equipment change can help my current break become more effective.

I'll never understand why, when someone doesn't have the answer to a question, they don't just reply in the fashion that Kim Bye did. I notice this with a lot of cue makers. If they don't have an answer, they just advise against doing whatever you are asking about. Just admit when you don't know something. If you are willing to do that, people will be more apt to trust the things that you do know about. If someone always talks like they know everything (which we all know isn't possible), I'd probably assume that person is sidestepping facts, or making things up on a semi-regular basis. It's OK to not know.

There seems to be a ridiculously large "do it my way" tone on this forum lately (obviously not just talking about this thread), and I can kind of see why the appeal of this place is fading.

People's wants and needs will always be subjective... let them be.


Cheers,

Mike
 
Do it and let us know how it works.

I think most cue repair men and builders can install a phenolic ferrule, hard tip, etc, on a regular shaft for much less than it costs to buy a nice Jacoby jump shaft and have it modified. If you don't care about the resale value, I say go for it.
 
Last edited:
galipeau said:
Do it and let us know how it works.

I think most cue repair men and builders can install a phenolic ferrule, hard tip, etc, on a regular shaft for much less than it costs to buy a nice Jacoby jump shaft and have it modified. If you don't care about the resale value, I say go for it.
Click to expand...

I should have it back sometime next week. Ariel Carmeli is going to handle it for me, so it's in good hands.

At the end of the day, it was too good of a deal to pass up on the cue, and these were the shafts it came with. If I ordered it new, it would've been a different story. ;)
 
I had a customer who's brass ferrule on a jacoby jump cue came loose. He wanted something different so we replaced it with phenolic. He liked the change and said it jumped just as good as before. Your mileage may vary.
 
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