Predator Arcos II CB Vs Measles CB

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DrCue'sProtege

AzB Silver Member
Silver Member
I've been playing with the Arcos II CB for the last several weeks now. Been having a terrible time of getting that CB to squat near the middle of the table. It kept coming back down table like it had some draw on it. And yes, at times it would get kicked down the table. But most of the time it came back down table like I had draw on it.

So last night I switched over to the Elephant CB and made note of where I hit the Elephant CB and where it landed. I hit it near the middle and it would stop near the center of the table.

And tonight, I was back hitting the Arcos II CB and it kept coming back down table. So I finally switched to the old measles CB and broke with it. Twice out of the three breaks I hit with it the CB squatted near the center of the table.

Anybody else have issues with the Arcos II CB? And other than a coincidence why would this happen?

r/DCP
 
It's probably how the ball is constructed?

Predator Arcos II Pool Balls | Cb Prime Usa
 
Both those balls are made from the SAP resin mix. The BLACK measel ball is Duramith.
 
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Really, the only two things that matter is the ball “coating” and the weight. If the weight is anywhere near 168g then it comes down to the coating.

The ball coating can be grease, chalk, oil, dirt… or it can be clean with scratches, knicks, abrasions… or can be new and polished. This is the ONLY thing that affects how the ball plays other than large variations in weight… Rolling and sliding friction.

Any variations in weight distribution per each of the three axes of the ball due to measle construction is symmetric on axis, and very negligible. And even If we pretend that it isn’t negligible, then the only thing that will happen is the rotational momentum will modulate slightly. This does not affect the path of the ball.

What does affect the path of the ball is if the weight distribution is NOT symmetrical. This creates a net torque while rolling and the ball will process and create a spiral with an extremely large radius. A pool ball would have to be very poorly grinded for a roll off to occur and is unlikely to be observed with anything you’ve used. Any weight variations close to the center of the ball have less effect as a square law.

The math from this comes from analysis of the sport of “lawn bowls” and of course deliberate center of mass offsets in bowling balls.

Interesting note… carom balls run longer than pool balls dominantly due to the greater weight over anything else.
 
An extreme example of offset rolling is equivalent to the path a spinning top makes while precessing. The green line can be predicted based off of weight offset. Here is a simulation I made. This is how ALL balls roll also. It is just that the more balanced a ball is, the closer to infinity the radius of the spiral is, which effectively becomes a straight line.

1743649916547.png
 
It's in your head man. Both balls are excellent. If you can make a short stop shot reliably with both, then that proves there is nothing wrong with them.
 
Scrunge19 said:
The construction of the ball and how they make the triangle dots shouldn’t matter if the resin is consistent throughout the entirety of the ball.


Another big factor is the weight of the cue ball vs the rest of the balls in the set. If the cue ball is lighter, it will be much easier to draw.
Click to expand...
Yeah. Weigh 'em all and also check if the dots aren't throwing you off.
 
nataddrho said:
Really, the only two things that matter is the ball “coating” and the weight. If the weight is anywhere near 168g then it comes down to the coating.

The ball coating can be grease, chalk, oil, dirt… or it can be clean with scratches, knicks, abrasions… or can be new and polished. This is the ONLY thing that affects how the ball plays other than large variations in weight… Rolling and sliding friction.

Any variations in weight distribution per each of the three axes of the ball due to measle construction is symmetric on axis, and very negligible. And even If we pretend that it isn’t negligible, then the only thing that will happen is the rotational momentum will modulate slightly. This does not affect the path of the ball.

What does affect the path of the ball is if the weight distribution is NOT symmetrical. This creates a net torque while rolling and the ball will process and create a spiral with an extremely large radius. A pool ball would have to be very poorly grinded for a roll off to occur and is unlikely to be observed with anything you’ve used. Any weight variations close to the center of the ball have less effect as a square law.

The math from this comes from analysis of the sport of “lawn bowls” and of course deliberate center of mass offsets in bowling balls.

Interesting note… carom balls run longer than pool balls dominantly due to the greater weight over anything else.
Click to expand...

nataddrho said:
An extreme example of offset rolling is equivalent to the path a spinning top makes while precessing. The green line can be predicted based off of weight offset. Here is a simulation I made. This is how ALL balls roll also. It is just that the more balanced a ball is, the closer to infinity the radius of the spiral is, which effectively becomes a straight line.

View attachment 816803
Click to expand...

That was interesting. Thanks. 👍
 
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