For anyone who made a 4 point jump, what exactly did you do? How long did it take you to make a large increase in score? My biggest issue is timing with reading, and not understanding the science portion. Is this increase possible? I am in a two day a week prep class that is only a hour and a half long… But I really need to take the act within the next month, and then again the following month if I don’t receive the score I need.