One of the NBAstuffer.com's readers suggested to combine prediction results. Why not! Thanks for the very good suggestion. I have combined A+, B and C graded predictions as well as combining D and E graded predictions. They are under the "Prediction Record" tab in the "Scores Prediction" page. 

The model works good for the road teams. At almost 60% of all predictions, the model gets closed to actual scores up to 8 points which is not that bad. Learn more about the NBAstuffer.com's prediction model.