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Update: In follow to urethane ball tests, USBC finds no issues with reactive resins, stops hardness tests on them for USBC Masters
JEFF RICHGELS | Posted: Wednesday, March 11, 2020 8:00 pm
A hand-held durometer use to check bowling balls in the field for years. A reader sent it to me after reading my recent series of stories on urethane ball hardness. Photo by Jeff Richgels.
Note: This story originally posted March 6, 2020.
Update March 11, 2020: USBC announced Wednesday that it was finding no problems with reactive resin balls in its latest round of ball hardness tests heading into the USBC Masters and would be stopping tests of them.
The preliminary report is posted here at BOWL.com and attached to the bottom of this story as a PDF.
A key point is that “Reactive balls decreased in hardness from their out-of-the-box approval levels with use over time;...