Hopefully after a trip to Lowe's tomorrow, I'll be restarting my layout construction. An idea came to me while sitting on the vitreous china throne (second only to the shower for generating "AH HA!" moments of insight). The idea has to do with prepainting my foam before laying my N scale Unitrack. I remember from a past trip to the paint department that there is some kind of fine texturing agent that can be added to paint to create a surface texture similar to a fine grit sand paper. I was thinking of having that texturing agent added to some gravel-gray paint for the areas where I'll be laying track (also alleys and gravel parking lots)...and to some kind of dirt color paint for covering the rest of the pink prairie. Good idea or bad? Am I likely to have problems adhesive caulking my track down to this textured paint?