Duke William of Normandy won the battle because was well prepared and had a good army. They prepared carefully for the battle. The Normans had knights on horseback who were skilful fighters.
A utility knife, metal ruler, and a hammer can be faster than trying to carefully saw an opening. Score the drywall a couple times till you are most of the way through, then just knock a hole with the hammer and break the drywall back at the score lines.
Cut a piece of plastic drywall repair mesh to fit the crack. Use scissors to round off the corners and press the self adhering mesh to the wall, so that it covers the crack and extends onto sound drywall on all sides. Apply the patching compound over the mesh, filling the crack and piling it up to cover the mesh.Use a 6 inch wide drywall knife to spread the compound, feathering the edges down to meet the surrounding wall surface. Allow it to dry and add a second coat if needed to fill any gaps. Allow this top coat to dry overnight.se scissors to round off the corners and press the self adhering mesh to the wall, so that it covers the crack and extends onto sound drywall on all sides. Apply the patching compound over the mesh, filling the crack and piling it up to cover the mesh.