TILED THE WALLS IN A HALF BATH. USED CEMENT BOARD AS A BASE. THE SPACE BETWEEN EACH TILE AND THE CORNER OF THE WALL VARIES BECAUSE THE WALL WAS SO NOT SQUARE. CAN ROPE TILE BE GLUED IN THE CORNERS TO HIDE THE UNEVEN GROUT LINES? ANY SUGGESTIONS ON HOW TO HIDE THE UNEVEN GROUT LINES?