Critical Express Our automatic version of the popular Critical Mass retains the properties that have made it famous: aroma, taste, production ...Finally! Automatic great taste and effect . The main feature of this plant, apart from its speed in a vegetative state is to reach a considerable size with little internodal distance. It also develops many side branches that allows you to produce more flowers. These flowers take on the nuances of his mother, the familiar Critical, forming large compact buds.