A great ball is one that is used by many bowlers with many different styles for many years and even after it's most useful period has passed is still in demand.
Popularity because of effectiveness followed by popularity past it's prime. That makes a great ball.
Rubber lt 48, Columbia Yellowdot, Danger Zone, Violet 3D offset, Ebonite One, Virtual Gravity.
Balls that were great balls, but were not balls that were great.
Demolition Zone, Crimson Red Sledgehammer, Hammer No Mercy Beatn, Columbia Full Swing.
The Demolition Zone I believe was the greatest of the balls that are great but not a great ball!
As my proshop operator said, "I can drill that ball just about any way for any style bowler and they will come back and brag about it in their league." Was not a Danger Zone or Sapphire zone type of seller!
It takes Courage to have Faith, and Faith to have Courage.
James M. McCurley, New Orleans, Louisiana