Let me add to the discussion....
1. my father in law has had 4 Brunswick balls crack nearly the entire circumference of the ball just by sitting on his ball rack in his house...Danger Zone, Red Alert, Helix and HPD
2. I have never seen a Storm crack unless you drilled into the pin...had a Wrath and a Bolt both do that.
3. Columbias are VERY prone to cracking around the finger inserts.
4. The older Ebonites (Crush's, Turbo X's & XL's and Nitros) were prone to core separations. I have not seen any problems with the newer Savages, Predators etc.
I think that if any ball were to be exposed to extreme hot or cold that it would cause enough stress to crack it.
Leftyhi-trak brings up a viable point. Do you suppose that the companies without cracking problems are those that match the thermal expansion properties among the components used to make thier balls? I mean these ball companies have enough chemists and R&D guys that you'd think they could minimize this problem.
Any opinions?
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Doug Sterner
Doug's Pro Shop
Owego, NY
www.dougsproshop.net
Think about it....pins are wood, lanes are wood...
the weapon of choice is obvious...
CUT 'EM UP BABY it's BUZZSAW TIME!!!