Finding Quarter Ball (A / C in CTE)
- Thread starter Jucas
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Practice, practice, practice. When they go in, your subconscious will learn to recognize that alignment as the one you want.
This kind of unavoidable learned estimation is one of the (many) reasons there's no such thing as totally "objective" aiming without subconscious involvement.
Just gotta deal with it.
pj
chgo
Wait for the Truth Series to come out. They will be well defined and very objective.
LMAO.............. same old same old
Yeah, I had this same issue a couple of years ago. This will get you real close.
Just so you will understand what I'm going to say, place a striped ball on the table with the stripe vertical. Stand back from the ball, notice the shadow of the ball on the table.
Where the shadow meets under the ball (looks like this >--<) that is real close to an "A" or "C". It gets even clearer when you get down into the shooting position.
Just try'in to help out.
John
You can also place a striped OB with its stripe vertical and centered facing you. The edges of the stripe are pretty close to the quarters.Yeah, I had this same issue a couple of years ago. This will get you real close.
Just so you will understand what I'm going to say, place a striped ball on the table with the stripe vertical. Stand back from the ball, notice the shadow of the ball on the table.
Where the shadow meets under the ball (looks like this >--<) that is real close to an "A" or "C". It gets even clearer when you get down into the shooting position.
Just try'in to help out.
John
pj
chgo
LMAO.............. same old same old
Yeah, I had this same issue a couple of years ago. This will get you real close.
Just so you will understand what I'm going to say, place a striped ball on the table with the stripe vertical. Stand back from the ball, notice the shadow of the ball on the table.
Where the shadow meets under the ball (looks like this >--<) that is real close to an "A" or "C". It gets even clearer when you get down into the shooting position.
Just try'in to help out.
John
Sounds vaguely familiar
Sent from my iPhone using Tapatalk Pro
There he was talking about the sightline, not the aimline, aimline is still CB edge to A/C - quarters.
I realized this as soon as I typed it, so I deleted that bit. Yes, instead of ETC in conjunction with the CTE line, he uses ETC and center cb "one tick passed the left quarter".
Is a tick 1 degree? In another video he mentions 360 ticks on the ball, so I assume 1 tick is one degree. If so, that's 0.5 mm across the face of the ball. I'm sure he means a little left of that quarter, not an exact half millimeter. That would be pretty talented visual skills.
If you can find an “older” Centennial striped ball, the edges of the stripe are at 1/4, or A & C. Newer centennials and Aramith balls are close, but the old Centennials are dead on. As someone else stated, place the stripe where you are looking straight at it. Do this and you’ll burn in the A & C visuals in a VERY short time.
Finding the quarter IS a visual determination. Quarter ball is 1/2 distance from OB center to OB edge.
The exact 1/4 ball distance is 9/16" or (.562) from OB center or OB edge..... 1/8 ball is 9/32" or (.281)
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Yes, and by "older" they would have to older than 20 or 30 years, which are tough to find. Mine are from 1996 and the stripe is not the quarters.
Here are two balls to show how close the stripes are to matching the quarters.
https://i.imgur.com/aSlD7NW.jpg
The top ball is a 25yr old Brunswick centennial. The stripe is only 1 and 1/16" wide. Should be 1 1/8 to match quarters perfectly. The bottom ball is generic. The stripe is 1 1/4" wide....too wide. They are close, but one is 1/16 too thin and the other 1/8 too thick.
https://i.imgur.com/aSlD7NW.jpg
The top ball is a 25yr old Brunswick centennial. The stripe is only 1 and 1/16" wide. Should be 1 1/8 to match quarters perfectly. The bottom ball is generic. The stripe is 1 1/4" wide....too wide. They are close, but one is 1/16 too thin and the other 1/8 too thick.
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Here's the same balls with their quarters marked.
The stripe looks bigger than it is in the middle of the ball because it's closer to the camera - it's actually a little more narrow at the top and bottom.
pj
chgo
View attachment 78243
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Cool. But I held a tapeline over the balls and tried to get a visual on width. The centennial looked like 1 1/16. So then I wrapped the tapeline around the ball and measured the arc length of the stripe. It was a littlle thinner than 1 1/8. There's no way the straight on view of the stripe, in comparison to the diameter of the ball, can be bigger than the actual arc measurement on the ball. It must be a camera illusion.
The marks are great. Shows that the centennial is very close, just a touch thinner but not enough to be too far off.
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Doublecheck something. Compare your tapeline to an actual ruler. Are they the same? I used a tailor's type tape measure a few times and something didn't look right. Turns out the tape measure (fabric?) had stretched and was no longer accurate. Just saying its something to look out for if you haven't already confirmed that it is good.