You can certainly pour slowly if you'd like to have clear layers, however, it's not necessary for this drink. As you can see in the photos, this cocktail doesn't have any absolute layers to it, instead it looks like a colorful tie dye drink! The most important part while making this blue Hawaiian mai tai is to pour the layers correctly, with rum being the first thing added so it stays at the bottom. If you'd like, you can swirl it all together in the glass to create a pretty aqua blue color.