Drawing for Watercolor- Tiny Post

This is a tiny post! I wanted to throw some ideas out there about drawing for watercolor. How important is an under-drawing for a watercolor painting?
Since we are dealing with a transparent medium, all the marks that we make on the paper are important because they show through in the end of the painting process. When deciding how tight you want to make the under-drawing, you want to consider several factors. First, how detailed do you want to make your final painting? In the example here, the reflections on the cup were pretty complex, and my intention was to try and study them very closely. In this case, a detailed drawing helped me to create a sort of "map" to follow when things get too confusing. It also provided me with extra time to  study the subject before I start applying paint. The drawing process allowed me to decide how I want to apply the paint, weather I will use masking fluid, how much of it and where, and other planning steps that help me tackle a complicated painting.
If you are creating an involved under-drawing, take into account the type of paper you choose. If the paper is too thin, it might tear easily if you erase it multiple times. Fragile/light paper can also tear easily if you erase it many times and them apply heavy washes to it, or create multiple wet layers. Always test a small piece of your paper for durability before starting a long and involved painting.

I talk more about specific tool suggestion in the first part of this past post.