KA with TBR?

Is it sufficient to just watch KA and do phase I, II, III for practice in TBR? Or should I read thru TBR? I need an extensive content review for gen chem and physics but the readings don't seem clear to me in the TBR. Is it that I am reading too fast or I'm too stupid to comprehend? I plan to use official materials, practice exams, and AAMC materials additional to this.
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Tags: MCAT: Medical College Admissions Test Source Type: forums