The cores are VERY similiar BUT the coverstocks are completely different; the BB loves oil, and the KONG is more of a medium to medium-light condition ball that will skid a bit on oil (personal experience). Both, when used on the appropriate condition, go long and make a hard turn on the backend. My 2 cents ...
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Man, I LOVE this game; and I love it even more now that I'm using LEGENDS/LaneMasters balls ... Master the Lanes with Legendary hitting power !!!
Robb in O'Fallon, IL 62269 (near Scott AFB)
LAYBZZ74@AOL.COM