Rendered a house couple of years ago, shitty neighbour wouldn’t allow us access to render the side of the new extension so we put a stop bead on the corner to finish, fast forward.. neighbour has gone and customer wants us to render side wall, was thinking of over lapping new stop bead flush with existing bead, so only one face of the bead is showing, and maybe running a thin mastic bead to finish? Any other suggestions to make the corner visibly pleasing?