fast-speed bank-shot aiming system

dr_dave said:
Many different systems for aiming bank shots have been described and discussed in the Main Forum in the past. For those who like this sort of thing, you might find the following new video interesting:

NV E.8 - 1/3-More-Than-Twice Bank-Shot Aiming System, from HAPS III

Enjoy,
Dave
Click to expand...

Another good one. On object balls that are farther from the rail, can you use top gearing english to make the object ball slide or even have a little backspin instead of using speed. Most of the shots on your video were pretty close to stop shots. Obviously, desired cue ball position comes into the decision.
 
dr_dave said:
Many different systems for aiming bank shots have been described and discussed in the Main Forum in the past. For those who like this sort of thing, you might find the following new video interesting:

NV E.8 - 1/3-More-Than-Twice Bank-Shot Aiming System, from HAPS III

Enjoy,
Dave
Click to expand...

http://youtube.com/watch?v=wvXkhdINjS4

Dr Dave....in this Willie Mosconi video, is he doing the same thing? The first bank is lined from about 3 to 1 on the diamonds. He is just hitting them with speed and compressing the cushion. The OB is probably sliding when it hits the rail.
 
buckshotshoey said:
http://youtube.com/watch?v=wvXkhdINjS4

Dr Dave....in this Willie Mosconi video, is he doing the same thing? The first bank is lined from about 3 to 1 on the diamonds. He is just hitting them with speed and compressing the cushion. The OB is probably sliding when it hits the rail.
Click to expand...
That's the 3-to-1 through-diamond reference. This shot requires very fast speed and isn't as versatile as the 1/3-more-than-twice system. Both and described and illustrated on the fast-speed bank-shot aiming-system resource page.

Regards,
Dave
 
buckshotshoey said:
... He is just hitting them with speed and compressing the cushion. The OB is probably sliding when it hits the rail.
Click to expand...
Actually, it's the sliding part that's important. There is no significant "cushion compression" on bank shots as far as anyone has been able to demonstrate.
 
Thanks Bob

Bob Jewett said:
Actually, it's the sliding part that's important. There is no significant "cushion compression" on bank shots as far as anyone has been able to demonstrate.
Click to expand...

Appreciate you sharing your knowledge on AZ! Nice work!

Wedge
 
interesting topic.

how do we control the OB to be sliding or rolling when it contact the rail?
 
Blue said:
interesting topic.

how do we control the OB to be sliding or rolling when it contact the rail?
Click to expand...

It depends on the speed you hit the object ball. Think of a cueball... If you hit a cueball hard with draw it will change the distance of the slide as opposed to hitting it slowly with the same draw. The same is true of an object ball you can just influence it less as you can only hit an object in one spot (where the cueball contacts it) so speed becomes more important.
 
As I explained the other time too, the "1/3 more than twice" seems to clearly deviate from the well known "62.5%" rule (very stable in different conditions) as descibed from Grady Mathews, especially at longer distance banks, besides targeting spots opposite diamonds is not the easiest method.
I did some testing, unfortunately there's no youtube of Grady's available but it's included in his banking videos, his method is long standing and tested "on the field" and I would stay with it.
Thanks,
Petros
 
Petros Andrikop said:
As I explained the other time too, the "1/3 more than twice" seems to clearly deviate from the well known "62.5%" rule (very stable in different conditions) as descibed from Grady Mathews, especially at longer distance banks, besides targeting spots opposite diamonds is not the easiest method.
I did some testing, unfortunately there's no youtube of Grady's available but it's included in his banking videos, his method is long standing and tested "on the field" and I would stay with it.
Thanks,
Petros
Click to expand...

Can you describe that method?
 
Gradys advice on firmly hit banks was a couple inches further up the rail across the short table, and an inch on the long table to hit a bank with firm speed. The percentages Grady spoke of were his one rail kicking system.
Depending on the rubber, I use a quarter diamond past the geometic point to hit a bank firm just a touch below center.
Chuck
 
dr_dave said:
Many different systems for aiming bank shots have been described and discussed in the Main Forum in the past. For those who like this sort of thing, you might find the following new video interesting:

NV E.8 - 1/3-More-Than-Twice Bank-Shot Aiming System, from HAPS III

Enjoy,
Dave
Click to expand...

That's awesome Dave. I play banks from time to time and while I know those bank shots from playing this is the first time I've seen them systemized with a consistent mathematical application formula and the parallels. Kudos!
 
Bob Jewett said:
Actually, it's the sliding part that's important. There is no significant "cushion compression" on bank shots as far as anyone has been able to demonstrate.
Click to expand...
There is significant "cushion compression," and the effect does come into play on some shots (e.g., see HSV B.20 - Rail cushion compression shots); however I agree with your that the "sliding part" is the biggest piece of the puzzle when it comes to lack of rebound angle dependence on speed. Here's proof:

NV B.95 - Post-rebound spin, angle, and curve for stunned kicks and banks
HSV B.41 - bank speed effects, with Bob Jewett

Regards,
Dave
 
Bob Jewett said:
Can you describe that method?
Click to expand...

Grady descibed this first as a "62.5% rule", targeting at between 50% and 75% distance from pocket which is 62.5%, a point which can be visualized very easily even without using diamonds, just moving the cue a couple of times is enough, as long as we are speaking of a typical "equal sided" triangle formed by the lines.
Firm speed, no side english on CB works well both for kick and bank shots, too bad there's no part of his video in youtube, really good system.
Petros
 
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