I believe to drop under a "normal" level of BF or lean out, you need to incorporate some type of method. This could be carb cycling, IFing or basic calorie deficit. It might take 1 or 2 of these techniques depending on the person. Being primal helps being generally low carb so you're burning fat. But to burn off the last couple of percentages (that the body wants to hold on to) you have to play around with these types of methods.