I am in panel painting mode and having success. I am using a "bonding agent" to assure a good surface since not all the paneling is natural wood. I selected "KilzII" a water based stain blocker and bonder and am using Glidden Satin Finish as the color coat. Two coats of Kilz on the darker paneling and always two coats of paint. Prior to Kilz I washed all surfaces with TSP and even used hole filler on damaged surfaces. I am pleased. Wish you good luck!