i have to skim a ciling with coving as a kind of boarder its about 20inc in fron the eges of the ciling should i try plastering around it and prob loose the step on it or take it down and skim the ciling and ge tthe fella to put new stuff up. by the way the edges of the ciling are curved to the walls so therre is no corner just a picture rail about 2ft down the wall. so i would need to skim up the wall around the curve and try to stop a the edges of the coving all the way around it , that make sence ? any way what do you think take it down or try go around it.????