I just put in the corresponding ABC lines for the last 11 New Jersey numbers and I quickly found out that NJ does NOT behave the way New York does. For example, three back to back high lines (12—10—10) were followed by lines 8 and 5; in New York that would have been lines 1, 2, or 3. Same thing with the triple (15–777); soon after this one would have seen low line numbers (lines 1, 2, 3 or 4) hitting New York. That is not the case in New Jersey on the drawings below; high lines soon followed: 10-10-12.
Conclusion: Every state is different. To get the most out of the ABC system one has to focus on one state and strategize accordingly. If one is playing more than one state, one has to pay careful attention to the specific way each state behaves and keep these differences in mind when planning what numbers to play next. However, of the two approaches, I think that over the long term specializing in ONE state is the best approach.