Quality?
As for quality, I haven't seen any abnormal repairs coming from those cues. I haven't heard of any problems from owners of those cues. Occasionally, someone from any predator shaft will complain about a crooked cue. But, that is a short lived problem. I think it was in the laminations of the wood.
If you are trying to get a CM to say that one cue plays better than another, you may be waiting. Every player has a different preference about what they like in a cue. But, that isn't quality. If you go to McD's for a burger and then go to BK. You may prefer one or the other. But, the quality is ...is it fresh, hot, all beef, thoroughly cooked, etc. It may be quality but still taste like s#4%. But, taste is taste. IOW, preference.
Anyway, if you are talking about two predator cues, I don't understand why one would be of quality and the other not quality. BTW, selling price doesn't translate to quality either. Again, preference. Supply and Demand economics.