I know Bryan is more of an advocate of high carbs for gaining size but... How does the high fat/cyclical high carb diet compare? Here is the premise: High Fat: Insulin is low most of the time so fat supposedly can't make it into fat cells while the EXTREMELY high calories and slight test boost from the high fat support growth. Additionally, the carb-loads serve to boost insulin and IGF-1 when there is room for carbs in muscle glycogen. High carb, low fat: There are just enough excess calories (but not nearly as much as in the high fat diet) to support growth. However, insulin is more commonly present to help ingested protein "make it" into muscle tissue.