In both sets I found the blending to go smoothly in some spots and not so much in others. They were grainy and a fight to blend sometimes. I did find using them a lot of fun. They were a quick way to get a painting down. They would be great for a location sketch or a sketch trying to work values out. I will probably work with them again and try to paint loose and flowing next time.
Cathy Johnson has an article in the April 2011 issue of Watercolor magazine on using WC pencils. Cathy talks about the versatility of WC pencils and crayons. She also gives tips on how to use the pencils/crayons and how they compare brand to brand. Cathy's favorite is Faber-Castell Albrecht Durer WC pencils because she feels they are highly saturated and buttery soft.