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Here’s a good example of what I mean. This was a soft shot. Thinking about how the ball bends after contact rather than thinking about straight tangent lines as usually discussed seems to help me be more accurate.

https://drdavepoolinfo.com/high-speed-video/hsv-a-49/ These are both close to the miscue limits. No part of the ball moves towards the player.

You can see that this is true with a thought experiment. Imagine a car tire sitting freely in a parking lot. You then take a baseball bat and swing at the tire, just barely skimming the top. The tire will not spin in place before it moves forward because the downward component of force of the...

Follow is nothing more then a rolling ball. An interesting fact is that a cue ball can not over spin in place when top spin is applied due to the downward force of the ball into the table and friction. Hitting a cue ball above the center of percussion does not create more top spin… the only way...

The Apple Watch app for the DigiBall is fully released and in the Apple Store. No need to email me about being put in a testing group. Nate

willful ignorance

I understand that this is comedy but I never thought it was funny.

Here is an example using the first method and results. I used precision shims and a caliper to align the ball and tip contact points precisely. This doesn’t include the small error introduced by speed estimation.

I used four methods: -Robot, which is just a spring loaded steel shaft in a teflon block -high speed camera -caliper-adjusted tip extension device that I made -pro player evaluation and feedback

It would depend on whether or not the ball was placed in Shipping Mode after charging and shipping. Shipping Mode saves battery life for long term storage, but can only be woken up by placing on the charger.

Yes exactly. The timer starts counting when the cue ball stops moving. It can’t tell if any object balls are still moving but in most instances the cue ball stops last. Players understand that limitation.

It does, and it had it for a while. I haven't been able to adjust VP to make it play like a heated 10 table. I've tried quite a bit. But for pool tables it is fine.

It is very difficult and takes way more time than anybody realizes, especially with new inventions.

It is more suited for carom. The table plays longer and slide is more realistic. I like virtual pools control better, carom ball is annoying for bank shots. But carom ball isn’t hard to get used to.

Purposeful practice optimizes feedback from table time. It’s useful for people who have limited time at the table because they can get the most out of learning. HAMB can also give results but it requires a lot of table time that some people don’t have available to them. Maybe you had a lot of...

It used to be a book with a notepad, and then moved onto phones. Why do you need a notepad to practice? To track progress and to make sure your practice has a purpose.

I don’t think people realize what a great learning tool this game is. Aside from stroke it lets you practice and verify shot choices which is the most important part of the game.

To all testers, If you own an Apple Watch and would like to also test the DigiBall using your watch, please PM me your email so that I can add you to the testers distribution list. It is a lightweight stand alone app with no features other than the ball display. Nate

I went ahead and did it. DigiBall will also have a free watch app for Apple Watch. It is stand alone (the watch reads the DigiBall directly) so you don’t need to use your phone with the watch.

OK... I was showing my enthusiasm for learning. I purchased your material last year. It has many good examples of position play, and I plan on practicing it a bit more. That is where it will end with you. I had a few more questions that I was thinking of discussing with you, but your online...