Crooked lines hide patches
We squared off the patches for you using a carbide blade. I thought this will help you to have straight lines.
Crooked lines are better. You can see straight lines from window infills, etc. a mile away. Cutting back the edges of the patch leaving a crooked line also provides good overlap for metal lath:
This patch is a necessary evil for new roof flashing. The edge of the patch is left jagged and crooked.
