I have never had balls crack like they do now. Chipping around the fingers and thumb, ok. In the last year, I have had a 900 Global (3 yrs old) crack while on the rack in my basement, a Storm Modern Marvel (1yr old), a Storm tropical storm (2yr old) and a C300 Scout (6monhs old) crack on the floor of my closet. No extreme temperature changes. Is anyone else having issues with balls cracking? Can I do something else to keep them from cracking?