The pin on Brunswick-made balls is also just a marker, whereas the pin on Columbia-made balls is a true core holder, with the shaft connecting solidly to the core.
I just had a Lane#1 ball and a COlumbia ball with the pin placed exactly between the finger holes. The Brunswick ball had a void about 3/4" below the pin, creating a gap between the finger holes, while the columbia ball was solid all the way through. The gap in the Brunswick ball concerned me but my driller said not to worry about it.
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Bowling: Just like hand grenades and horse shoes, you only have to get close.
Life: Deal with what is.