SLIDING BANK DIAMOND SYSTEMS … How to Aim Banks at Fast-Speed or Close-to-the-Cushion

[dr_dave]

Another great video!

Thanks!

Thanks for sharing!

You’re welcome.

Here's a neat fractional banking method that I came up with a few months ago. It's very easy to work and manipulate as needed.

It works well when the ob is froze or very close to the cushion. Aim a little thinner if the cb is closer than about 10 inches from the ob.

Anytime the cb-ob centerline is parallel to the end rail, as shown with shots 1 thru 4, the aim reference is equal to whatever diamond value the shot is lying on (4, 5, 6, or whatever...). For every half diamond that the centerline is off from being parallel, adjust the aim by +/- 1.0. These are just 1/8 aiming references with 0 being a full ball hit and 7 being a 1/8 hit.

The example shot to the bottom right pocket is a 6 if lined straight on with the ob.

These aim references may not be perfectly accurate, but they are always consistent, and this consistency helps the mind learn quicker. This method can really help a player develop a great eye/feel for these types of bank shots.

View attachment 712765

Nice diagrams and explanations. You should post a video demonstrating it.

 

[BC21]

Thanks!



You’re welcome.



Nice diagrams and explanations. You should post a video demonstrating it.

I will do that, when I get time. The same theory works for short-rail banks, full-table. But every eighth is a 1 diamond difference instead of half a diamond.

 

[dr_dave]

FYI, I just posted a new video that demonstrates, evaluates, and compares various diamond systems for aiming sliding bank shots where fast speed is used or where the object ball is close to the banking cushion. Check it out:

Contents:
0:00 - Intro
0:32 - Reference Lines
3:11 - Dr. Dave 1/3-More-Than-Twice System
7:29 - Jewett 3-Diamond “Spot on the Wall”
8:41 - Measured “Spot on the Wall”
11:50 - Other Systems
---- 12:06 - 1-more-than-twice
---- 12:51 - Eckert 3/8
---- 13:47 - Briesath thirds
14:33 - System Comparison
17:22 - Wrap Up

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

Enjoy!

BTW, I should have mentioned that the Eckert 3/8 and Briesath thirds systems give the exact same results since 8/3x is the same as 2x(1 + 1/3). In other words, the "spots on the wall" for these systems are identical.

Also, I just came up with a new system that matches the measured reference bank lines very well. It is called the "1/3-times-more-than-twice" system. I will do a video soon; but if you are interested in seeing how well it matches the measurement and how all the systems compare, see the graph on the second page here:

TP B.27 – Sliding Bank System Comparison​

I think this is going to me my new sliding bank aiming system since it is better than all the others (although the math is a little trickier but not bad as I will demonstrate in a future video).

 

[BC21]

I made a video of my easy method for banking balls that are froze or close to the rail.

The system isn't as technical as other methods, but it's very effective and could help players develop a good eye/feel for these types of banks.

 

[dr_dave]

BTW, I should have mentioned that the Eckert 3/8 and Briesath thirds systems give the exact same results since 8/3x is the same as 2x(1 + 1/3). In other words, the "spots on the wall" for these systems are identical.

Also, I just came up with a new system that matches the measured reference bank lines very well. It is called the "1/3-times-more-than-twice" system. I will do a video soon; but if you are interested in seeing how well it matches the measurement and how all the systems compare, see the graph on the second page here:

TP B.27 – Sliding Bank System Comparison​

I think this is going to me my new sliding bank aiming system since it is better than all the others (although the math is a little trickier but not bad as I will demonstrate in a future video).

FYI, I had some errors in my original analysis, but I fixed them today. The new optimal system is: twice plus a tenth of twice (still measuring in the rail grooves across from the diamonds). This is good news since it is very easy to calculate (as I will show in my next video).