I spent many years working as a mold tech for an injection molding company.
One thing I can tell you is that temperature affects the size of any Phenolic resin item.
Objects made from phenolic resin expand as they heat up.
Billiard balls are made using a thermosetting process that minimizes the contraction and expansion of billiard balls but does not totally eliminate it.
It is best to keep billiard balls at a controlled temperature for consistency.
Also, bringing balls in from cold temperatures will cause them to sweat which creates moisture on the surface.

fcoffman said:

Several years ago, I purchased three John Davis blanks. I've had two of them made into cues by Paul Drexler. Still have a zebrawood that I'm trying to prove provenance on. I believe it was AZ billiards that had the lot, but I'm not sure. Trying to prove purchase and provenance so I can either sell the blank or have some cue builder make it into a cue for me.
Thanks
Frank Coffman

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We also have a dedicated John Davis page on the Book of Faces.

muskyed said:

My wife and her friend complain that I have our lower level in floor heat set too low at 68 deg. When her friend was coming over to shoot all the time, my wife would tell me to turn it up to 70, keep in mind it takes about two hrs to change the temp where the in floor heat runs non stop. I finally put a stop to that, 68 or nothing. Now when her friend comes over, she wears her heated vest, sort of funny actually.
I'm the King of the house, ha ha

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I keep my place at 61

garczar said:

Sarah has a streak of 'old school gambler' in her. I liked her action when she was active.

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Did she quit playing? Would see her and Jason when I went to Illinois for work. I didnt play any when I was there over the summer