To be completely honest, given their considerable overlap in the methods of action, I prefer to "stagger" Anabolic Pump and P-SLIN - that is, use Anabolic Pump, say, from weeks one to four, and then P-SLIN from four to eight, and so on. However, in particular circumstances where one is deviating substantially from the diet, completing a "refeed", or generally consuming a very large amount of carbohydrates, the two products can be taken concurrently for maximum effect.