TWICE-PLUS-TENTHS … The Most Useful Bank Shot Diamond System You’ll Ever Learn

dr_dave

dr_dave

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FYI, I just posted a new video that presents a new diamond system for aiming sliding bank shots. It is called the twice-plus-tenths system. It is more accurate than all the other systems, including the 1/3-more-than-twice system, and it works over a wider range of angles. It measures everything relative to the rail grooves across from the diamonds instead of through the diamonds. The origination rail number is always twice the banking rail number plus that many tenths. Speed, spin, and cut angle effects are also demonstrated, along with how to aim cross-side and long banks in addition to cross-corner banks. Check it out:


Content:
0:00 - Intro
1:20 - Twice-Plus-Tenths System
4:29 - Factors and Effects
7:44 - How to Use the System
10:40 - Cross-Side and Straight-Back Banks
12:05 - Examples
13:29 - Wrap Up

As always, I look forward to your feedback, comments, questions, complaints, and requests.

Enjoy!
 
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I watched a video of a top player explain his system of kicking wit a lot of math involved plus how humid the air was and how old the cloth was.
First off he lost me on the math and when he finally shot the long table kick he missed the object ball by 6 inches.
That's when I decided to just continue to use dead reckoning(that's feel for those of you in Loma Linda).
But I'm going to watch your video and see how hard the math is.
 
measureman said:
I watched a video of a top player explain his system of kicking wit a lot of math involved plus how humid the air was and how old the cloth was.
First off he lost me on the math and when he finally shot the long table kick he missed the object ball by 6 inches.
That's when I decided to just continue to use dead reckoning(that's feel for those of you in Loma Linda).
But I'm going to watch your video and see how hard the math is.
Click to expand...

I present both visual and simple-math approaches. The simple math is faster and more accurate, but some people will "relate more" to the visual methods.

Please let us know what you think after watching. I am very excited about this new system.
 
measureman said:
I got 5 minutes in and was lost with the math.
Nice effort but I dont think your average pool player is going to get the math,at least not me.
Click to expand...

It is not as tough as you think if you practice the reference-line banks first. You don't really need the "math." You just need to remember the lines. Although, with practice, people will find the "math" simple: double and add that number.
 
dr_dave said:
It is not as tough as you think if you practice the reference-line banks first. You don't really need the "math." You just need to remember the lines. Although, with practice, people will find the "math" simple: double and add that number.
Click to expand...
Lets see what others think.
But thanks for doing the work,I do watch most of your videos but seldom comment.
 
I'm looking forward to working with this system. Thank you kindly for your research and clear explanation.
 
Very easy to understand. Just 1) use points across from the diamonds on the table rather than through the diamonds, 2) double it just like you’d expect with a bank, but then 3) add 10% of the doubled rail. And remember these are sliding banks, not rolling.

I do find using the points across from the diamonds more difficult and wish there was a good system for looking right through to the diamonds. I think you presented one Dr Dave but it seemed a little clunkier to use.

So this is the same as the +1/3 system at 3.3 to 1.5, but a little more accurate as you get further away from that?
 
BRussell said:
Very easy to understand. Just 1) use points across from the diamonds on the table rather than through the diamonds, 2) double it just like you’d expect with a bank, but then 3) add 10% of the doubled rail. And remember these are sliding banks, not rolling.
Click to expand...

Good summary.


BRussell said:
I do find using the points across from the diamonds more difficult
Click to expand...

Agreed, but it is worth it.


BRussell said:
and wish there was a good system for looking right through to the diamonds.
Click to expand...

I presented several in the following video, but they all require adjustments if you want to be accurate over a wide range:



BRussell said:
So this is the same as the +1/3 system at 3.3 to 1.5, but a little more accurate as you get further away from that?
Click to expand...

The twice-plus-tenth system is more accurate at the low end and much more accurate for large angles.
 
Great system. I recognized that any system really needs an adjustable additive term, but wasn't sure how to really determine it. This is fantastic work. I can't wait to try it out...and then perhaps report back on the "Diamond table effect."

One thought: should the system perhaps be called twice plus tenths?
 
Rocket354 said:
Great system.
Click to expand...

Thanks.


Rocket354 said:
I recognized that any system really needs an adjustable additive term, but wasn't sure how to really determine it.
Click to expand...

Me too. My one-third-more-than-twice system worked OK, but I was always disappointed how it did at the very low end and for large angles. The new twice-plus-tenths system is more accurate and works over a very large range of angles.


Rocket354 said:
This is fantastic work. I can't wait to try it out...and then perhaps report back on the "Diamond table effect."
Click to expand...

I look forward to hearing your "Diamond Report." I also plan to do some tests on different tables soon.


Rocket354 said:
One thought: should the system perhaps be called twice plus tenths?
Click to expand...

Great idea! I've already made the change.
 
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