I distressed an 11″x14″ piece of 90 pound watercolor today. It was significantly easier than wrestling with 300 pound paper (see 300 Pound Abstract and Another 300 Pounder), even though it was much smaller (8″x8″). I did some painting (Prussian blue and quinacridone gold) on the paper before immersing it in a pot of water. Then I crushed it into a ball. After flattening it onto a board, and squeegee-ing the excess water from it, I re-washed it with the same pigments and added transparent iron yellow and a dash of cadmium red light.
I love the color saturation of this piece. I only applied washed two times. Perhaps the paper allowed for brighter colors.