I am putting up some plasterboard, after which I have a plasterer coming to finish off. Two of these boarded walls meet at an internal corner. One wall will have a plaster skim and the other will hopefully just have the joints done. How is it best to make this corner? Ideally, would it be better to arrange for one of the tapered edges on the non skim wall to be at the corner or will it not matter as the adjoining wall will be skimmed?