These teams met opening night and the Raptors won, 130-122, in overtime. There were 234 points scored in regulation. The total sailed Over a consensus closing total of 229 1/2.
Now we have a much higher total in a revenge spot for the home Pelicans with both teams talking about playing better defense and having had first-hand experience against each other.
I trust Nick Nurse to make solid adjustments to keep the Pelicans' scoring down. Nurse proved himself during the playoffs last season. The Raptors allow 108.7 points and rank No. 1 in defensive field goal percentage. Nurse wasn't happy, though, with the Raptors' defense in their last game, a 124-120 home win against the Kings two nights ago. The Kings were hot from deep range tying a franchise-record with 20 3-pointers. 
The Pelicans are the Pelicans. They are a high-scoring team that doesn't play much defense. It is difficult to get involved going Under in their games. But New Orleans coach Alvin Gentry is talking about defensive improvement and said a way to do that is be more patient on offense and not play such a helter-skelter style. If the Pelicans do slow things down it would be huge for the Under. 
It takes a lot to go Over a total this high. There is enough evidence for me here to go Under.