I’ve been admiring Jeff’s work since my first day here. I know he uses pencil on canvas so I thought I give it a try too. I bought a package of three 11x14 canvas with cardboard backing and gave it a shot. It was an immediate fiasco. Whenever I tried to erase anything it would only smudge and the harder I erased the darker, deeper the smudge would get. I tried kneaded and vinyl erasers. I had to jump ship and go back to a bristle type paper. How do you guys do it? Was I supposed to prime the canvas first? Any pointers would be highly appreciated.