I had a recent interior job, and the walls were grey and the ceilings white in a thick texture. The cut lines from wall to ceilings were difficult, and the standard caulk taping did not give a straight line. After the normal procedure, the client asked for a different look. They wanted a straight line. Where the wall met the ceiling it looked like the drywall had been installed with a wet spaghetti noodle thrown on the wall and followed instead of using a level or chalk line!! So taking two people and stretching the tape the entire length of the wall we were able to create that straight line!