C system 3.5. Three drills and multiple surfaces.
This testing, 3 drills and multiple surfaces, is a sign that the poster REALLY tried to get the ball to work. My 2 cents is, even when you do a thorough job, with at least 2 drillings, 3 surfaces and a few different oil patterns, that does not make this a bad ball. It could be that it just didn't match up with your release and the oil and lane surfaces on which you bowled.
The problem with saying a ball is "bad" carries many possible connotations. And since there is always someone of a higher skill set who will be able to use any one ball, how can anyone say a ball is totally bad? Logically, all they can say is that they couldn't get it to work for them.