I'm in the middle of Week 3 for studying and just finished the core curriculum for the Logical Reasoning section (learning all the question types and going through all the lessons). The next step in my study scheduler is to begin going through the lessons for Reading Comprehension. Should I put LR aside for now and go onto RC and LG (learning all the fundamentals and going through all the lessons) and then begin practicing and improving each section or should I try to drill and work on mastering LR first before moving on to the next sections? When does taking full PTs come into the picture?