I had a recent interior job that the walls were grey and the ceilings white in a thick texture. The cut lines wall to ceilings were difficult and the normal standard of caulk taping was not giving a straight line. After normal procedure and client was asking for a different look. They wanted a straight line. Where the wall met the ceiling it looked like the dry wall 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 were we able to get a straight line. I have come across this needed technique about once every 15 years!! It will add a day to the project and me paying my guys an extra day. However the client is paying me to create a line the eliminate the crooked corners. They are paying for the 41 years of experience not how long or short the project last