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Search: Posts Made By: dr_dave
Forum: Main Forum Yesterday, 05:01 PM
Replies: 29
Views: 959
Posted By dr_dave
You can easily get your answer by plugging your...

You can easily get your answer by plugging your numbers into the TDF calculator on the TDF sticky thread (https://forums.azbilliards.com/showthread.php?t=324408).

Regards,
Dave
Forum: Main Forum Yesterday, 12:01 PM
Replies: 29
Views: 959
Posted By dr_dave
Pocket size, facing angles, and shelf depth are...

Pocket size, facing angles, and shelf depth are all important. They are all taken into consideration in the Table Difficulty Factor (TDF), per the info here:

Table Difficulty Factor (TDF) sticky...
Forum: Main Forum Yesterday, 10:15 AM
Replies: 38
Views: 1,135
Posted By dr_dave
That's the basic conclusion of all the chalk...

That's the basic conclusion of all the chalk testing I've done over the years:

chalk brand comparative testing (https://billiards.colostate.edu/faq/chalk/comparison/)

Although, some chalks...
Forum: Main Forum Yesterday, 08:40 AM
Replies: 32
Views: 963
Posted By dr_dave
FYI, lots of definitions of the ABCD ratings...

FYI, lots of definitions of the ABCD ratings (from different sources and people), along with comparisons to other systems, can be found here:

ABCD Player Rating System...
Forum: Main Forum Yesterday, 08:38 AM
Replies: 7
Views: 400
Posted By dr_dave
In this latest video, my goal was to show more...

In this latest video, my goal was to show more shots and talk less. I don't explain every detail about how to execute each shot or how and why they work.

Do people prefer this style? Or do you...
Forum: Main Forum Yesterday, 05:05 AM
Replies: 29
Views: 959
Posted By dr_dave
If somebody doesn't have an angle-measuring...

If somebody doesn't have an angle-measuring device, an option is to measure the pocket mouth and throat sizes:

http://billiarduniversity.org/images/table_pocket_measurements.jpg


Then look up...
Forum: Main Forum 07-09-2020, 04:54 AM
Replies: 7
Views: 400
Posted By dr_dave
Thanks. Im glad you liked it. Regards, ...

Thanks. Im glad you liked it.

Regards,
Dave
Forum: Main Forum 07-08-2020, 08:18 PM
Replies: 7
Views: 400
Posted By dr_dave
I like ticky shots too. I'll add this to my...

I like ticky shots too. I'll add this to my video list.

Catch you later,
Dave
Forum: Main Forum 07-08-2020, 08:18 PM
Replies: 7
Views: 400
Posted By dr_dave
You're welcome. I aim to swerve. :grin-square: ...

You're welcome. I aim to swerve. :grin-square:

Regards,
Dave
Forum: Main Forum 07-08-2020, 07:18 PM
Replies: 7
Views: 400
Posted By dr_dave
Exclamation DOUBLE-KISS SHOTS ... Real Game Winners

FYI, I just posted a new video demonstrating a wide assortment of double kiss shots, where one ball hits another ball into a cushion, with the rebounding ball causing a secondary hit. Check it out:...
Forum: Main Forum 07-08-2020, 06:07 PM
Replies: 29
Views: 959
Posted By dr_dave
See the Table Difficulty Factor (TDF) thread...

See the Table Difficulty Factor (TDF) thread (https://forums.azbilliards.com/showthread.php?t=324408) and linked info.

Regards,
Dave
Forum: Main Forum 07-08-2020, 06:30 AM
Replies: 123
Views: 4,891
Posted By dr_dave
FYI, we finally got a 2nd Exam III Junior...

FYI, we finally got a 2nd Exam III Junior Division entry. Hopefully, we will get many more. Scores and videos for all entries to date are here...
Forum: Main Forum 07-08-2020, 05:40 AM
Replies: 85
Views: 2,898
Posted By dr_dave
For those with math and physics backgrounds who...

For those with math and physics backgrounds who might be interested, the detailed analysis and some example calculations can be found here:

TP B.22 – How peak tip contact force and contact patch...
Forum: Main Forum 07-08-2020, 05:32 AM
Replies: 38
Views: 1,135
Posted By dr_dave
I repeated the test for each chalk around 10...

I repeated the test for each chalk around 10 times that day. Results were very similar but I didn't think folks would want to watch me hit a cue ball over 100+ times with the same chalk.

I made...
Forum: Main Forum 07-07-2020, 09:41 AM
Replies: 85
Views: 2,898
Posted By dr_dave
Good post Bob. FYI, I just added a quote on the...

Good post Bob. FYI, I just added a quote on the light grip vs. tight grip resource page (https://billiards.colostate.edu/faq/grip/light-vs-tight/).

Regards,
Dave
Forum: Main Forum 07-06-2020, 03:34 PM
Replies: 23
Views: 1,384
Posted By dr_dave
I'm glad to hear it. Regards, Dave

I'm glad to hear it.

Regards,
Dave
Forum: Main Forum 07-06-2020, 09:56 AM
Replies: 85
Views: 2,898
Posted By dr_dave
... because the forces between the tip and CB are...

... because the forces between the tip and CB are incredibly large, much larger than what your arm "feels" during the incredibly brief contact time. For more info, see:

cue tip contact time...
Forum: Main Forum 07-06-2020, 09:26 AM
Replies: 85
Views: 2,898
Posted By dr_dave
See the 4th paragraph and linked video here: ...

See the 4th paragraph and linked video here:

light vs. tight grip (https://billiards.colostate.edu/faq/grip/light-vs-tight/)

Enjoy,
Dave
Forum: Main Forum 07-06-2020, 09:25 AM
Replies: 85
Views: 2,898
Posted By dr_dave
I'm not sure it answers the question, but all...

I'm not sure it answers the question, but all info related to this project can be found here:

Jacksonville Project Slow Motion Video Pool Study...
Forum: Main Forum 07-04-2020, 03:11 PM
Replies: 23
Views: 1,384
Posted By dr_dave
I agree that people "could" figure this stuff out...

I agree that people "could" figure this stuff out on their own. But there aren't many that actually "would." That doesn't make them morons. Not everybody has the patience and analytical mind...
Forum: Main Forum 07-04-2020, 10:12 AM
Replies: 23
Views: 1,384
Posted By dr_dave
Thanks. There are many things in pool that...

Thanks.

There are many things in pool that require "feel," but there are also many things where a little "understanding" and "knowledge" can go a long way.

You're welcome. I aim to swerve. ...
Forum: Main Forum 07-04-2020, 10:02 AM
Replies: 23
Views: 1,384
Posted By dr_dave
Okay, that makes sense (steep to the 2nd rail on...

Okay, that makes sense (steep to the 2nd rail on the first shot and steep to the 1st rail on the second shot). What about the 3rd shot? You said that it is coming into the 2nd rail at a steep...
Forum: Main Forum 07-04-2020, 05:32 AM
Replies: 23
Views: 1,384
Posted By dr_dave
Thanks. This one took a lot of time and effort,...

Thanks. This one took a lot of time and effort, but it was worth it. I really learned a lot and improved my feel for these shots.

Agreed. "Feel" can be off and can be lost. I always have more...
Forum: Main Forum 07-03-2020, 07:58 PM
Replies: 23
Views: 1,384
Posted By dr_dave
I'm glad you liked it. And I'm glad you thought...

I'm glad you liked it. And I'm glad you thought it was worth watching multiple times.

This particular system definitely takes a lot of practice. I certainly got a lot better during my long...
Forum: Main Forum 07-03-2020, 07:54 PM
Replies: 23
Views: 1,384
Posted By dr_dave
The first shot is coming into the 2nd rail at a...

The first shot is coming into the 2nd rail at a steep angle. The second shot is coming into the 1st rail at a steep angle. Both are relative to the benchmark shot with the midpoint line at the 45...
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