Well, having read Shamus' rockwork article, I'm all pumped up and ready to give it a shot. My questions are twofold; --Where does one get "undercoat plaster"? My local home-improvement megastore (Revy) carries only basic plaster, such as plaster of paris (GAWD knows how old that stuff is...), and the "Pollyfilla" type wall-patching stuff. --What about tinting it? I really like the way Shamus' plaster starts with a basic earth colour. I've heard that tinting plaster will slow the setting time, sometimes to the point where it won't set at all. Any truth to this? What sort of tints should be used? My rockwork so far has consisted of WS rock molds. I used old plaster of paris, just because I had it at hand. This stuff just seems to suck up wash after wash after wash, and seems as though it likely won't stand up to much abuse. Anyone have hints or ideas?