How do you know where the cueball is going ?

[sfleinen]

Trisect system- wow you have to pivot your hand and make a peace sign, sounds very unnatural and complicated, think I'll pass.

But-but-but cookie man, I thought the word "pivot" was a GOOD word?

J/K, of course. Hope you're having a good one,
-Sean

 

[dr_dave]

Yes, but I think the link is much more useful than a short text-only answer. But since you asked, here you go:

For a stun shot, the CB heads along the tangent line. This is the 90-degree rule.

For a rolling CB shot, the CB heads in the natural angle direction predicted by the 30-degree rule.

For a good action draw shot, the CB heads in the trisect system direction.

With more speed and cue elevation, the CB persists longer in the tangent line direction before curving (see HSV B.23).​

If people want more details, illustrations, examples, articles, and video demonstrations, they can click on the links.

Trisect system- wow you have to pivot your hand and make a peace sign, sounds very unnatural and complicated, think I'll pass.

The hand trick is not necessary. You can just visualize the cut angle and then twice the cut angle in the other direction. That's what I do, unless I need to be very accurate ... then I use my hand.

Regards,
Dave

 

[skeptic]

For a stun shot, the CB heads along the tangent line. This is the 90-degree rule.

For a rolling CB shot, the CB heads in the natural angle direction predicted by the 30-degree rule.

For a good action draw shot, the CB heads in the trisect system direction.

With more speed and cue elevation, the CB persists longer in the tangent line direction before curving (see HSV B.23).​

Regards,
Dave

This, but not the trisect part. For draw shots it's just feel, and sometimes english to get it to draw to one side or the other (if it's fairly straight or I really need to kill the travel along the tangent and come back). If I'm coming off a rail (any shot) I sometimes use english as well.

Really though, it's just the 90* and 30* rules and adjust speed/draw/follow/english from there by feel.

 

[skeptic]

The hand trick is not necessary. You can just visualize the cut angle and then twice the cut angle in the other direction. That's what I do, unless I need to be very accurate ... then I use my hand.

Regards,
Dave

Hmm... I watched the video link above a couple times, and while I understand what is on the video, I don't "get" that it works. Maybe I'm just too used to using varying amounts of draw and speed for a method like this to work, or maybe it does and I just don't realize it?

I'm going to have to play around with this a bit. Having a way to calculate the draw line would be better than "it should go somewhere around here..."

 

[gulyassy]

I call it the secret of the pyramids. I know where it is going because I put it there.

 

[Cdryden]

How do you know where the cueball is going?

I follow it around until it stops! ( sorry, I couldn't help myself)

Honestly i think for the most part it's experience. After allot of practice you will begin to develop a feel for things. I visualize the entire shot from start to finish as others have suggested in this post. And the last thing I look at before I pull the trigger is the contact point of the object ball. Some say thats wrong, some say thats right, I say it's just the way i do it.

 

[dr_dave]

For a good action draw shot, the CB heads in the trisect system direction.

The hand trick is not necessary. You can just visualize the cut angle and then twice the cut angle in the other direction. That's what I do, unless I need to be very accurate ... then I use my hand.

Hmm... I watched the video link above a couple times, and while I understand what is on the video, I don't "get" that it works. Maybe I'm just too used to using varying amounts of draw and speed for a method like this to work, or maybe it does and I just don't realize it?

I'm going to have to play around with this a bit. Having a way to calculate the draw line would be better than "it should go somewhere around here..."

The trisect system direction is simply a reference line, just like the tangent line and natural angle line. Draw direction varies with the amount of backspin the CB has at the OB. This varies with tip position, shot speed and distance, and conditions, all of which must be judged based on "feel" (backed up by lots of practice). Also, the amount of shift down the tangent line varies with speed. The trisect direction applies only for a "good action" draw shot. For more info, see my March '06 BD article. Also, these videos describe the reference lines more and show how they are used in practice:

NV B.43 - Cue ball position control stun, roll, and draw reference lines
NV B.68 - Tweener cluster breaks, from VEPS I​

I hope that helps,
Dave

 

[delarge]

im surprised it hasn't been mentioned-- i dont think anybody who is reading/posting in this thread does know where the cb is going. i think even through history, very few players have actually and consistently known where it is going. most of them are probably one pocket players too. efren is of course one, buddy, id say allen hopkins-- any of them posting?