I have used several different colors of these balls.
The Pink/Yellow Shell with Pink fill is the best. It breaks easily on contact. My CO was longballing and hit a fellow player in the groin area twice with both breaking. It shoots through breaks easily (J&J Ceramic) quickly.
The Blue/Green Shell with Blue fill is decent. It breaks on contact most of the time. I was shooting at players less than 25 yards away and 2 of 3 just bounced.
At Academy 2,000 balls only cost $30. This is the best ball for those people who cannot afford shooting higher priced balls all the time. The Pink/Yellow shell is the best to buy.