Balancing Balls like Bryson?

[CarlSpackler]

@dennyjones has some bad balls, but it is because of the logo. 
 

@billchao I wondered if the two methods would correlate.

Edited April 17, 2020 by CarlSpackler

[iacas]

4 minutes ago, CarlSpackler said:

@billchao I wondered if the two methods would correlate.

They should.

I wonder if the "friction" or something in the CheckGo is having any effect? Or maybe the balls are ever-so-slightly out of round, but not out-of-balance?

[billchao]

3 minutes ago, CarlSpackler said:

@billchao I wondered if the two methods would correlate.

They didn't in my case, but N=3 so it's not saying a lot.

Just now, iacas said:

They should.

I wonder if the "friction" or something in the CheckGo is having any effect? Or maybe the balls are ever-so-slightly out of round, but not out-of-balance?

Yea something is off. They're older balls, but they were never hit.

[billchao]

54 minutes ago, iacas said:

Or maybe the balls are ever-so-slightly out of round, but not out-of-balance?

It would appear the Titleist DT Solo that kept returning to the same line when spun is indeed out of round. I measured the ball, as best as one can, with a set of digital calipers. It is 1.6805" at its narrowest point and 1.6850" at its widest.

No explanation for why the Wilson Ultra does not produce the same line when spun, though. I've repeated both the saltwater test and the spinning multiple times now.

[Typhoon92]

21 hours ago, dennyjones said:

6 Srixon / 6 4 layer Kirkland.  

 

The six tighter shot pictures are the Kirklands.   The more distant shot pics are the Srixon.   The Srixon has a tighter pattern returning to the same spot more often.   There was one Srixon that after three spins returned to the same spot each time.   The patterns don't look random for either.   The Kirklands had more dispersion.

This wasn't a scientific test.   My wife yelled at me to clean up the mess!  (I did).   I added sea salt to a small sauce pan.  It took considerable more salt than I imagined.   I also noticed that the sides of the pan can/could play a part in the rotation of the ball.  I tried to only place a dot if the ball had not touched the side.   Before inserting the balls into the water I turned on the stove burner to expedite the salt concentration.  

All I can conclude from this, BD may be on to something.  Then again, my test, sample size and technique at best were amateurish.   

If MY wife caught me doing this she’d have me committed.

[Vinsk]

20 hours ago, billchao said:

It would appear the Titleist DT Solo that kept returning to the same line when spun is indeed out of round. I measured the ball, as best as one can, with a set of digital calipers. It is 1.6805" at its narrowest point and 1.6850" at its widest.

No explanation for why the Wilson Ultra does not produce the same line when spun, though. I've repeated both the saltwater test and the spinning multiple times now.

How sensitive are the calipers? What about the dimples? If you measured bottom of dimple to bottom of dimple...then ridge to ridge your readings would be different. Dimple is about .010” on average yes? 

[Double Mocha Man]

8 minutes ago, Vinsk said:

How sensitive are the calipers? What about the dimples? If you measured bottom of dimple to bottom of dimple...then ridge to ridge your readings would be different. Dimple is about .010” on average yes? 

.010 ".  The same distance as ticking an upside-down cup and calling the putt good.

[billchao]

14 minutes ago, Vinsk said:

How sensitive are the calipers? What about the dimples? If you measured bottom of dimple to bottom of dimple...then ridge to ridge your readings would be different. Dimple is about .010” on average yes? 

Well it measures to four significant figures. I don't have another to compare accuracy against.

I rotated the ball slightly at each point of measurement to make sure I caught it at the widest point and not in a dimple or just out of alignment so I was measuring a chord instead of the diameter. I also repeated the measurement process several times and produced the same results.

[Vinsk]

33 minutes ago, Double Mocha Man said:

.010 ".  The same distance as ticking an upside-down cup and calling the putt good.

Lol. Yeah...Those guys out there thinking making any contact with the raised cup is a holed ball? WTF? 
 

All this ball physics is fun...but I’d like to see BD use a TrackMan and compare numbers with the rejects to the accepted balls. I’m hypothesizing there’s no significant effect with regards to shot/putt outcome.

[boogielicious]

2 hours ago, Typhoon92 said:

If MY wife caught me doing this she’d have me committed.

Yeah I’m a retired chemical engineer and even I’m not nerdy enough to do this! There are so many variables too. The ball is spinning very fast. The amount of mass to make it alter its trajectory has to be significant. I don’t think it is.
 

For a putt, the green surface is not nearly perfect enough to ever test this properly either.

[dennyjones]

59 minutes ago, boogielicious said:

even I’m not nerdy enough to do this!

I believe I've just been bitch slapped!   🤣

Bored enough, tired enough...I just needed something different to do on a snowy day in Michigan.   Prior to today we had snow for 3 days.  (I did mow my lawn today.....  STAY OFF MY LAWN.  Reformed Curmudgeon!)

 

If someone could determine that a ball was always returning to the same spot, wouldn't it be advantageous to have the heavy side opposite "the dot" be facing the putter so that it would roll a little more true?   I'm not sure there is enough data to persuade an argument one way or another.

Edited April 18, 2020 by dennyjones

[billchao]

1 minute ago, dennyjones said:

I believe I've just been bitch slapped!   🤣

Quite the contrary. Being called a nerd by @boogielicious is the highest of compliments.

[Double Mocha Man]

7 minutes ago, dennyjones said:

Bored enough, tired enough...I just needed something different to do on a snowy day in Michigan.   Prior to today we had snow for 3 days.  (I did mow my lawn today.....  STAY OFF MY LAWN.  Reformed Curmudgeon!)

What?!  You own a snow blower that has rotary blades to mow the lawn at the same time???  Nice.

[dennyjones]

Doesn't everyone?

[Double Mocha Man]

2 minutes ago, dennyjones said:

Doesn't everyone?

... and it's got snow tires already installed!  That is a classic!

Edited April 18, 2020 by Double Mocha Man

[Archie Bunker]

It would be interesting to compare these "bad" balls with "good" balls on an Iron Byron or modern test launcher similar to what the USGA uses. See if there really is any difference in performance. 

[Vinsk]

1 hour ago, Archie Bunker said:

It would be interesting to compare these "bad" balls with "good" balls on an Iron Byron or modern test launcher similar to what the USGA uses. See if there really is any difference in performance. 

Difference? Probably. Significant? I doubt it. 

[mohearn]

Saw this today and made me think of this, was there ever any consensus that it (balancing balls) makes enough difference to do it?